While GLM-5 seems impressive, this release also included lots of new cool stuff!

> GLM-5 can turn text or source materials directly into .docx, .pdf, and .xlsx files—PRDs, lesson plans, exams, spreadsheets, financial reports, run sheets, menus, and more.

A new type of model has joined the series, GLM-5-Coder.

GLM-5 was trained on Huawei Ascend, last time when DeepSeek tried to use this chip, it flopped and they resorted to Nvidia again. This time seems like a success.

Looks like they also released their own agentic IDE, https://zcode.z.ai

I don’t know if anyone else knows this but Z.ai also released new tools excluding the Chat! There’s Zread (https://zread.ai), OCR (seems new? https://ocr.z.ai), GLM-Image gen https://image.z.ai and Voice cloning https://audio.z.ai

If you go to chat.z.ai, there is a new toggle in the prompt field, you can now toggle between chat/agentic. It is only visible when you switch to GLM-5.

Very fascinating stuff!

Pelican generated via OpenRouter: https://gist.github.com/simonw/cc4ca7815ae82562e89a9fdd99f07...

Solid bird, not a great bicycle frame.

• btown

  today at 6:01 PM

  Thank you for continuing to maintain the only benchmarking system that matters!

  Context for the unaware: https://simonwillison.net/tags/pelican-riding-a-bicycle/

  • l_eo

    today at 8:55 PM

    They will start to max this benchmark as well at some point.

    • ljm

      today at 10:25 PM

      It's not a benchmark though, right? Because there's no control group or reference.

      It's just an experiment on how different models interpret a vague prompt. "Generate an SVG of a pelican riding a bicycle" is loaded with ambiguity. It's practically designed to generate 'interesting' results because the prompt is not specific.

      It also happens to be an example of the least practical way to engage with an LLM. It's no more capable of reading your mind than anyone or anything else.

      I argue that, in the service of AI, there is a lot of flexibility being created around the scientific method.

      • tylervigen

        today at 10:32 PM

        For 2026 SOTA models I think that is fair.

        For the last generation of models, and for today's flash/mini models, I think there is still a not-unreasonable binary question ("is this a pelican on a bicycle?") that you can answer by just looking at the result: https://simonwillison.net/2024/Oct/25/pelicans-on-a-bicycle/

      • interstice

        today at 10:36 PM

        So if it can generate exactly what you had in mind based presumably on the most subtle of cues like your personal quirks from a few sentences that could be _terrifying_, right?

  • gabiruh

    today at 7:38 PM

    It's interesting how some features, such as green grass, a blue sky, clouds, and the sun, are ubiquitous among all of these models' responses.

    • derefr

      today at 9:49 PM

      It is odd, yeah.

      I'm guessing both humans and LLMs would tend to get the "vibe" from the pelican task, that they're essentially being asked to create something like a child's crayon drawing. And that "vibe" then brings with it associations with all the types of things children might normally include in a drawing.

    • btown

      today at 9:44 PM

      If you were a pelican, wouldn't you want to go cycling on a sunny day?

      Do electric pelicans dream of touching electric grass?

• solarized

  today at 8:22 PM

  This Pelican benchmark has become irrelevant. SVG is already ubiquitous.

  We need a new, authentic scenario.

  • viraptor

    today at 8:52 PM

    Like identifying names of skateboard tricks from the description? https://skatebench.t3.gg/

    • alargemoose

      today at 9:23 PM

      I don’t care how practical it may or may not be, this is my new favorite LLM benchmark

    • stevage

      today at 9:38 PM

      I couldn't find an about page or similar?

      • viraptor

        today at 10:00 PM

        Here's the public sample https://github.com/T3-Content/skatebench/blob/main/bench/tes...

        I don't think there's a good description anywhere. https://youtube.com/@t3dotgg talks about it from time to time.

    • hmottestad

      today at 9:25 PM

      o3-pro is better than 5.2 pro! And GPT 5 high is best. Really quite interesting.

  • echelon

    today at 9:56 PM

      1. Take the top ten searches on Google Trends 
         (on day of new model release)
      2. Concatenate
      3. SHA-1 hash them
      4. Use this as a seed to perform random noun-verb 
         lookup in an agreed upon large sized dictionary. 
      5. Construct a sentence using an agreed upon stable 
         algorithm that generates reasonably coherent prompts
         from an immensely deep probability space.
    

    That's the prompt. Every existing model is given that prompt and compared side-by-side.

    You can generate a few such sentences for more samples.

    Alternatively, take the top ten F500 stock performers. Some easy signal that provides enough randomness but is easy to agree upon and doesn't provide enough time to game.

    It's also something teams can pre-generate candidate problems for to attempt improvement across the board. But they won't have the exact questions on test day.

• _joel

  today at 6:09 PM

  Now this is the test that matters, cheers Simon.

• pwython

  today at 6:25 PM

  How many pelican riding bicycle SVGs were there before this test existed? What if the training data is being polluted with all these wonky results...

  • bwilliams18

    today at 8:45 PM

    I'd argue that a models ability to ignore/manage/sift through the noise added to the training set from other LLMs increases in importance and value as time goes on.

  • nerdsniper

    today at 7:36 PM

    You're correct. It's not as useful as it (ever?) was as a measure of performance...but it's fun and brings me joy.

• RC_ITR

  today at 9:23 PM

  The bird not having wings, but all of us calling it a 'solid bird' is one of the most telling examples of the AI expectations gap yet. We even see its own reasoning say it needs 'webbed feet' which are nowhere to be found in the image.

  This pattern of considering 90% accuracy (like the level we've seemingly we've stalled out on for the MMLU and AIME) to be 'solved' is really concerning for me.

  AGI has to be 100% right 100% of the time to be AGI and we aren't being tough enough on these systems in our evaluations. We're moving on to new and impressive tasks toward some imagined AGI goal without even trying to find out if we can make true Artificial Niche Intelligence.

  • Rudybega

    today at 9:50 PM

    MMLU performance caps out around 90% because there are tons of errors in the actual test set. There's a pretty solid post on it here: https://www.reddit.com/r/LocalLLaMA/comments/163x2wc/philip_...

    As far as I can tell for AIME, pretty much every frontier model gets 100% https://llm-stats.com/benchmarks/aime-2025

benchmark and pricing made me realize how good kimi 2.5 is. im an opus 4.6 person but wow, its almost 5x cheaper.

I am using it with Claude Code and so far so good. Can't tell if it's as good as Opus 4.6 or not yet

The benchmarks are impressive, but it's comparing to last generation models (Opus 4.5 and GPT-5.2). The competitor models are new, but they would have easily had enough time to re-run the benchmarks and update the press release by now.

Although it doesn't really matter much. All of the open weights models lately come with impressive benchmarks but then don't perform as well as expected in actual use. There's clearly some benchmaxxing going on.

• dongobread

  today at 7:31 PM

  What a strangely hostile statement on an open weight model. Running like 20 benchmark evaluations isn't trivial by itself, and even updating visuals and press statements can take a few days at a tech company. It's literally been 5 days since this "new generation" of models released. GPT-5.3(-codex) can't even be called via API, so it's impossible to test for some benchmarks.

  I notice the people who endlessly praise closed-source models never actually USE open weight models, or assume their drop-in prompting methods and workflow will just work for other model families. Especially true for SWEs who used Claude Code first and now think every other model is horrible because they're ONLY used to prompting Claude. It's quite scary to see how people develop this level of worship for a proprietary product that is openly distrusting of users. I am not saying this is true or not of the parent poster, but something I notice in general.

  As someone who uses GLM-4.7 a good bit, it's easily at Sonnet 4.5 tier - have not tried GLM-5 but it would be surprising if it wasn't at Opus 4.5 level given the massive parameter increase.

  • maxdo

    today at 10:26 PM

    but even opus 4.5 is history now, codex-5-3 and opus 4.6 are one more step forward. The opus itself caused paradigm shift, from writing code with AI, to ai is writing code with human.

    open weight models are not there at all yet.

  • apimade

    today at 9:47 PM

    Isn’t trivial? How is it not completely automated at this point?

• InsideOutSanta

  today at 5:54 PM

  > it's comparing to last generation models (Opus 4.5 and GPT-5.2).

  If it's anywhere close to those models, I couldn't possibly be happier. Going from GLM-4.7 to something comparable to 4.5 or 5.2 would be an absolutely crazy improvement.

  • Aurornis

    today at 6:09 PM

    > Going from GLM-4.7 to something comparable to 4.5 or 5.2 would be an absolutely crazy improvement.

    Before you get too excited, GLM-4.7 outperformed Opus 4.5 on some benchmarks too - https://www.cerebras.ai/blog/glm-4-7 See the LiveCodeBench comparison

    The benchmarks of the open weights models are always more impressive than the performance. Everyone is competing for attention and market share so the incentives to benchmaxx are out of control.

    • InsideOutSanta

      today at 6:16 PM

      Sure. My sole point is that calling Opus 4.5 and GPT-5.2 "last generation models" is discounting how good they are. In fact, in my experience, Opus 4.6 isn't much of an improvement over 4.5 for agentic coding.

      I'm not immediately discounting Z.ai's claims because they showed with GLM-4.7 that they can do quite a lot with very little. And Kimi K2.5 is genuinely a great model, so it's possible for Chinese open-weight models to compete with proprietary high-end American models.

      • GorbachevyChase

        today at 7:30 PM

        From a user perspective, I would consider Opus 4.6 somewhat of a regression. You can exhaust your the five hour limit in less than half an hour on, and I used up the weekly limit in just two days. The outputs did not feel significantly better than Opus 4.5 and that only feels smarter than Sonnet by degrees. This is running a single session on a pro plan. I don’t get paid to program, so API cost matter to me. The experience was irritating enough to make me start looking for an alternative, and maybe GLM is the way to go for hobby users.

      • Aurornis

        today at 6:22 PM

        I think there are two types of people in these conversations:

        Those of us who just want to get work done don't care about comparisons to old models, we just want to know what's good right now. Issuing a press release comparing to old models when they had enough time to re-run the benchmarks and update the imagery is a calculated move where they hope readers won't notice.

        There's another type of discussion where some just want to talk about how impressive it is that a model came close to some other model. I think that's interesting, too, but less so when the models are so big that I can't run them locally anyway. It's useful for making purchasing decisions for someone trying to keep token costs as low as possible, but for actual coding work I've never found it useful to use anything other than the best available hosted models at the time.

        • buu700

          today at 8:53 PM

          It's high-interest to me because open models are the ultimate backstop. If the SOTA hosted models all suddenly blow up or ban me, open models mitigate the consequence from "catastrophe" to "no more than six to nine months of regression". The idea that I could run a ~GPT-5-class model on my own hardware (given sufficient capex) or cloud hardware under my control is awesome.

        • ffsm8

          today at 6:37 PM

          For the record, opus 4.6 was released less then a week ago.

          That you think corporations are anything close to quick enough to update their communications on public releases like this only shows that you've never worked in corporate

    • miroljub

      today at 7:39 PM

      Yeah, I'm sure closed source model vendors are doing everything within their power to dumb down benchmarks, so they can look like underdogs and play a pity game against open weight models.

      Let's have a serious discussion. Just because Claude PR department coined the term benchmaxxing, we we should not be using it unless they shell out some serious monetes.

• dust42

  today at 6:08 PM

  They are all just token generators without any intelligence. There is so little difference nowadays that I think in a blind test nobody will be able to differentiate the models - whether open source or closed source.

  Today's meme was this question: "The car wash is only 50 meters from my house. I want to get my car washed, should I drive there or walk?"

  Here is Claude's answer just right now:

  "Walk! At only 50 meters (about 150 feet), it would take you less than a minute to walk there. Driving such a short distance would actually be less convenient - by the time you get in the car, start it, drive, and park, you could already be there on foot. Plus, you'd save fuel and your car would be right there waiting for you after the wash is done."

  Here is ChatGPT, also right now:

  "Since it’s only *50 meters* (about 160 feet), walking makes a lot more sense.

  Here’s why:

  * *It’s extremely close* — you’ll get there in under a minute. * *Driving would actually be less efficient* — by the time you start the car, move it, and park, you’re already there. * *Cold starts aren’t great for your engine* — very short drives don’t let the engine warm up properly. * *It saves fuel and emissions*, even if it’s a tiny amount. * You avoid the hassle of maneuvering such a short distance.

  The only time driving might make sense is if:

  * The weather is terrible (heavy rain, snow, extreme cold). * You have mobility issues. * The car wash requires you to stay in the vehicle and you don’t want to leave it there.

  Otherwise, this is a perfect “walk it over” situation. "

  Please save us all that talk about frontier and SOTA and that only the closedAI models are any good and the others are all so bad and benchmaxxed. For most purposes a Toyota is just as good as a BMW or a Merc or whatever luxury brand tickles your fancy. Even worse, the lastest 80B Qwen Next is not far from Opus 4.6 but runs on my laptop.

  • cherryteastain

    today at 6:23 PM

    Gemini 3 Flash ("Fast" in the web app) did not have trouble with this:

    Since you presumably want the car to be clean, the answer depends entirely on how the car is getting washed. The Breakdown If it’s a Professional Car Wash: You’ll need to drive. Bringing the car to the wash is generally the prerequisite for them washing it. Plus, walking 50 meters just to ask them to come pick up a car that is visible from their front door might result in some very confused looks from the staff. If it’s a Self-Service Pressure Washer: Again, drive. Dragging a 1,500kg vehicle 50 meters by hand is an incredible workout, but probably not the "quick chore" you had in mind. If you are hiring a Mobile Detailer: Walk. Stroll over there, tell them where you're parked, and walk back home to watch TV while they do the work in your driveway.

  • j-bos

    today at 6:49 PM

    GLM 4.7: "You should drive.

    Since the goal is to get your car washed, the car needs to be at the car wash. If you walk, you will arrive at the car wash, but your car will still be sitting at home"

    Are you sure that question is from this year?

  • vardalab

    today at 9:23 PM

    This is really just a meme. People don't know how to use these tools.

    Here is the response from Gpt-5.2 using my default custom instructions in the mac desktop app.

    OBJECTIVE: Decide whether to drive or walk to a car wash ~50 meters from home, given typical constraints (car must be present for wash).

    APPROACH: Use common car-wash workflows + short-distance driving considerations (warm engine, time, parking/queue). No web sources needed (stable, local decision).

    OUTPUT: • Default choice: Drive. A car wash generally requires the car on-site, and 50 meters of driving is trivial. • When walking makes sense: • You’re going to drop the car off (hand-wash/detail) and pick it up later. • You want to avoid moving the car now (ice, tight parking, you’ve been drinking, etc.) and someone else will handle the car. • Micro-guidance: • If it’s an automatic wash you stay in, drive. • If it’s detail/hand wash with a wait, drive there, then walk home (or just wait).

    CONFIDENCE: 92/100 Assumptions: It’s a normal car wash that requires your car to be there; conditions are safe to drive 50 meters.

    • reliabilityguy

      today at 10:13 PM

      Your objective has explicit instruction that car has to be present for a wash. Quite a difference from the original phrasing where the model has to figure it out.

      • J_cst

        today at 10:48 PM

        That's the answer of his LLM which has decomposed the question and built the answer following the op prompt obviously. I think you didn't get it.

      • bwat49

        today at 10:43 PM

        > Your objective has explicit instruction that car has to be present for a wash.

        Which is exactly how you're supposed to prompt an LLM, is the fact that giving a vague prompt gives poor results really suprising?

        • reliabilityguy

          today at 10:48 PM

          In this case, with such a simple task, why even bother to prompt it?

          The whole idea of this question is to show that pretty often implicit assumptions are not discovered by the LLM.

    • sph

      today at 10:02 PM

      "You're holding it wrong."

  • qwytw

    today at 9:36 PM

    Some snippets from Kimi's 2.5 answer:

    "" [...] Since you need to get your car washed, you have to bring the car to the car wash—walking there without the vehicle won't accomplish your goal [...] If it's a self-service wash, you could theoretically push the car 50 meters if it's safe and flat (unusual, but possible) [..] Consider whether you really need that specific car wash, or if a mobile detailing service might come to you [...] """

    Which seems slightly (unintentionally) funny.

    But to be fair all the Gemini (including flash) and GPT models I tried did understand the quesiton.

  • haute_cuisine

    today at 6:11 PM

    Doesn't seem to be the case, gpt 5.2 thinking replies: To get the car washed, the car has to be at the car wash — so unless you’re planning to push it like a shopping cart, you’ll need to drive it those 50 meters.

  • reliabilityguy

    today at 10:11 PM

    Gemini Pro:

    You should definitely drive.

    If you walk there, your car will still be dirty back at your house! Since the goal is to get the car washed, you have to take it with you.

    PS fantastic question!

  • Aurornis

    today at 6:16 PM

    If you're asking simple riddles, you shouldn't be paying for SOTA frontier models with long context.

    This is a silly test for the big coding models.

    This is like saying "all calculators are the same, nobody needs a TI-89!" and then adding 1+2 on a pocket calculator to prove your point.

    • Balinares

      today at 8:18 PM

      I find it's a great test, actually. There are lots of "should I take the car" decisions in putting together software that's supposed to do things, and with poor judgement in how the things should be done, you typically end up with the software equivalent of a Rube-Goldberg machine that harnesses elephants to your car and uses mice to scare the elephants toward the car wash while you walk. After all, it's a short distance, isn't it?

    • grey-area

      today at 6:27 PM

      No it’s like having a calculator which is unable to perform simple arithmetic, but lots of people think it is amazing and sentient and want to talk about that instead of why it can’t add 2 + 2.

      • viraptor

        today at 10:28 PM

        We know why it's not going to do precise math and why you can have better experience asking for an app solving the math problem you want. There's no point talking about it - it's documented in many places for people who are actually interested.

  • Scene_Cast2

    today at 6:12 PM

    I just ran this with Gemini 3 Pro, Opus 4.6, and Grok 4 (the models I personally find the smartest for my work). All three answered correctly.

    • miroljub

      today at 7:47 PM

      They had plenty of time to update their system prompts so they don't be embarrassed.

      I noticed whenever such meme comes out, if you check immediately you can reproduce it yourself, but after a free hours it's already updated.

      • viraptor

        today at 9:05 PM

        I think you're seriously underestimating how much effort the fine tuning at their scale takes and what impact it has. They don't pack every edge case into the system prompt either. It's not like they update the model every few hours or even care about memes. If they seriously did, they'd force-delegate spelling questions to tool calls.

        • suzzer99

          today at 10:00 PM

          Could it be the model is constantly searching its own name for memes, or checking common places like HN and updating accordingly? I have no idea how real-time these things are, just asking.

          • viraptor

            today at 10:23 PM

            The model doesn't do anything on its own. And it's usually months in between new model snapshots.

      • qiine

        today at 8:27 PM

        The road to AGI is weirder than anticipated

      • UrineSqueegee

        today at 9:15 PM

        thats not how it works

  • uncharted9

    today at 8:04 PM

    I tried this prompt with all the major AI models that I know and have installed, and only GLM from Z.ai and Gemini 3 Flash could answer it. Even in that case, Gemini 3 Flash gave a bit more nuanced answer, but every other model like Claude Opus 4.5, Chat GPT, Grok - everything failed.

  • bonoboTP

    today at 6:12 PM

    It's unclear where the car is currently from your phrasing. If you add that the car is in your garage, it says you'll need to drive to get the car into the wash.

    • RohMin

      today at 8:59 PM

      Do you think the average person would need this sort of clarification? How many of us would have recommended to walk?

      • bonoboTP

        today at 9:28 PM

        Do you think this is a fundamentally unbridge-able limitation of LLMs? Do you know where we were just a year ago? Can you imagine that this will get better with upcoming releases? It's like when Gary Marcus was confidently stating that AI (at least current paradigm) will never be able to generate an image of a horse riding an astronaut. (Or full wineglasses or arbitrary clocks).

  • king_phil

    today at 6:12 PM

    Gemini 3 Pro:

    This is a classic logistical puzzle!

    Unless you have a very unique way of carrying your vehicle, you should definitely drive.

    If you walk there, you'll arrive at the car wash, but your car will still be dirty back at your house. You need to take the car with you to get it washed.

    Would you like me to check the weather forecast for $mytown to see if it's a good day for a car wash?

    • interloxia

      today at 7:02 PM

      For me, various forms of Gemini respond with "Unless you are planning on carrying the car there" which I find to be just sassy enough to be amusing.

  • smokel

    today at 6:37 PM

    > They are all just token generators without any intelligence.

    Maybe, but "intelligence" doesn't have a clear, agreed definition. And calling them "just token generators" skips over how complex that generation actually is.

  • izucken

    today at 9:25 PM

    Tsk tsk thats adversarial prompting. Hostile even. And thats goalposting which is totally not cool, man.

  • esafak

    today at 6:18 PM

    This is a great comment. The frontier labs ought to be embarrassed they can't get this right. A human would not make the same mistake, after thinking for a second.

  • Hammershaft

    today at 7:41 PM

    Claude 4.6 got it first try:

    "You’ll want to drive — you need the car at the car wash for them to wash it!

    Even though it’s just 50 meters, the car has to be there. Enjoy the fresh clean car on the short drive back! "

  • UrineSqueegee

    today at 9:15 PM

    this is a bot comment or just ragebait

  • rockinghigh

    today at 6:14 PM

    How is this riddle relevant to a coding model?

    • esafak

      today at 6:20 PM

      It's not a coding model. Go to https://chat.z.ai/ and you'll see it is presented as a generalist.

  • zozbot234

    today at 6:36 PM

    1. Analyze the User's Request:

    Distance: 50 meters (very short).

    Goal: Get the car washed.

    Decision: Drive or walk?

    2. Evaluate the Options:

    Option A: Walk

    Pros: Healthy, environmentally friendly, no need to find parking (though it's close), easy to chat with neighbors.

    Cons: The car is left at the car wash. The user can't "walk" the car to the car wash. The car must be moved to the car wash to be washed.

    Option B: Drive

    Pros: Moves the car to the location where the service is performed. It's the only logical way to get the car washed.

    Cons: Driving 50 meters is technically bad for a cold engine (short trips), uses a negligible amount of fuel, might seem lazy.

    3. Identify the Logical Flaw/Humor:

    The user is asking if they should walk to get their car washed.

    Unless the car wash involves someone coming to their house (mobile wash) or carrying the car, the car must be at the car wash.

    Walking to the car wash leaves the car at home. Walking back from the car wash leaves the car at the car wash.

    Therefore, the user must drive the car to the car wash.

    4. Formulate the Answer:

    Direct Answer: You should drive.

    Reasoning: The car needs to be at the car wash to be washed. You cannot walk the car there.

    Nuance/Context: 50 meters is a very short distance. Driving a car such a short distance is generally not great for the engine (doesn't allow oil to circulate/warm up properly), but it is necessary in this specific case.

    Alternative (if applicable): Is there a mobile wash option? If so, walking isn't even needed. But assuming a standard car wash bay: Drive.

    5. Drafting the response (Internal Monologue/Trial Phrases):

    Draft 1: You have to drive. You can't wash the car if it's at your house and you are at the car wash.

    Draft 2: You should drive. Since the car needs to be washed, it needs to be at the car wash. Walking there doesn't help get the car clean.

    Refining for clarity and wit: Point out the obvious - the car is the object being washed. It needs to move.

    Final Polish (similar to the provided good output):

    State clearly: You should drive.

    Explain why: The car needs to be there.

    Add a practical note: Driving 50 meters is a bit silly for engine health, but unavoidable here.

    Consider the scenario of "walking back": Maybe the user meant "walk back"? No, the prompt says "drive there or walk there". The intent is transportation to the location.

    6. Constructing the final output:

    "You should definitely drive."

    "Why? Because the car wash cleans the car, so the car needs to be at the car wash. If you walk, the car stays at home."

    "Additional thought: Driving 50 meters is technically a 'cold start' short trip which isn't ideal for the engine, but it's the only way to get the service done!"

    Final Output Generation (matching the logic above).

    You should drive.

    Here is why:

    1. The car needs to be there: You are getting the car washed, so the car must be at the car wash. You cannot walk the car there by yourself.

    2. Efficiency: Driving 50 meters takes about 10 seconds. Walking 50 meters takes about a minute, but you would be leaving the car behind.

    The only exception is if you are planning to get a mobile car wash (where they come to you) or if you are dropping the car off and walking back home while they clean it. But to simply "get there," you must drive.

    (The above output is from GLM-5)

• throwup238

  today at 5:39 PM

  > Although it doesn't really matter much. All of the open weights models lately come with impressive benchmarks but then don't perform as well as expected in actual use. There's clearly some benchmaxxing going on.

  Agreed. I think the problem is that while they can innovate at algorithms and training efficiency, the human part of RLHF just doesn't scale and they can't afford the massive amount of custom data created and purchased by the frontier labs.

  IIRC it was the application of RLHF which solved a lot of the broken syntax generated by LLMs like unbalanced braces and I still see lots of these little problems in every open source model I try. I don't think I've seen broken syntax from the frontier models in over a year from Codex or Claude.

  • algorithm314

    today at 5:43 PM

    Can't they just run the output through a compiler to get feedback? Syntax errors seem easier to get right.

    • NitpickLawyer

      today at 6:30 PM

      The difference is in scaling. The top US labs have oom more compute available than chinese labs. The difference in general tasks is obvious once you use them. It used to be said that open models are ~6mo behind SotA a year go, but with the new RL paradigm, I'd say the gap is growing. With less compute they have to focus on narrow tasks, resort to poor man's distillation and that leads to models that show benchmaxxing behavior.

      That being said, this model is MIT licensed, so it's a net benefit regardless of being benchmaxxed or not.

    • rockinghigh

      today at 6:12 PM

      They do. Pretty much all agentic models call linting, compiling and testing tools as part of their flow.

  • ej88

    today at 5:49 PM

    the new meta is purchasing rl environments where models can be self-corrected (e.g. a compiler will error) after sft + rlhf ran into diminishing returns. although theres still lots of demand for "real world" data for actually economically valuable tasks

• miki123211

  today at 8:27 PM

  Anthropic, OpenAI and Google have real user data that they can use to influence their models. Chinese labs have benchmarks. Once you realize this, it's obvious why this is the case.

  You can have self-hosted models. You can have models that improve based on your needs. You can't have both.

  • viraptor

    today at 9:07 PM

    zAI, minimax and Kimi have plenty of subscriber usage on their own platforms. They get real data just as well. Less or it maybe but it's there.

• ionelaipatioaei

  today at 6:03 PM

  I think the only advantage that closed models have are the tools around them (claude code and codex). At this point if forced I could totally live with open models only if needed.

  • evv

    today at 6:11 PM

    The tooling is totally replicated in open source. OpenCode and Letta are two notable examples, but there are surely more. I'm hacking on one in the evenings.

    OpenCode in particular has huge community support around it- possibly more than Claude Code.

    • ionelaipatioaei

      today at 6:54 PM

      I know, I use OpenCode daily but it still feels like it's missing something - codex in my opinion is way better at coding but I honestly feel like that's because OpenAI controls both the model and the harness so they're able to fine tune everything to work together much better.

    • Daviey

      today at 6:26 PM

      It's there now, `opencode models --refresh`

  • hamdingers

    today at 9:46 PM

    GLM works wonderfully with Claude, just have to set some environment variables and you're off to the races.

  • quikoa

    today at 6:26 PM

    If tooling really is an advantage why isn't it possible to use the API with a subscription and save money?

    • ionelaipatioaei

      today at 6:55 PM

      In my opinion it is because if you control both the model and the harness then you're able to tune everything to work together much better.

• cmrdporcupine

  today at 5:33 PM

  I tried GLM 5 by API earlier this morning and was impressed.

  Particularly for tool use.

• yieldcrv

  today at 5:41 PM

  come on guys, you were using Opus 4.5 literally a week ago and don't even like 4.6

  something that is at parity with Opus 4.5 can ship everything you did in the last 8 weeks, ya know... when 4.5 came out

  just remember to put all of this in perspective, most of the engineers and people here haven't even noticed any of this stuff and if they have are too stubborn or policy constrained to use it - and the open source nature of the GLM series helps the policy constrained organizations since they can theoretically run it internally or on prem.

  • Aurornis

    today at 6:11 PM

    > something that is at parity with Opus 4.5

    You're assuming the conclusion

    The previous GLM-4.7 was also supposed to be better than Sonnet and even match or beat Opus 4.5 in some benchmarks ( https://www.cerebras.ai/blog/glm-4-7 ) but in real world use it didn't perform at that level.

    You can't read the benchmarks alone any more.

It's live on openrouter now.

In my personal benchmark it's bad. So far the benchmark has been a really good indicator of instruction following and agentic behaviour in general.

To those who are curious, the benchmark is just the ability of model to follow a custom tool calling format. I ask it to using coding tasks using chat.md [1] + mcps. And so far it's just not able to follow it at all.

[1] https://github.com/rusiaaman/chat.md

• manofmanysmiles

  today at 6:04 PM

  I love the idea of chat.md.

  I'm developing a personal text editor with vim keybindings and paused work because I couldn't think of a good interface that felt right. This could be it.

  I think I'll update my editor to do something like this but with intelligent "collapsing" of extra text to reduce visual noise.

• data-ottawa

  today at 6:29 PM

  Custom tool calling formats are iffy in my experience. The models are all reinforcement learned to follow specific ones, so it’s always a battle and feels to me like using the tool wrong.

  Have you had good results with the other frontier models?

• nolist_policy

  today at 6:08 PM

  Could also be the provider that is bad. Happens way too often on OpenRouter.

  • pcwelder

    today at 6:12 PM

    I had added z-ai in allow list explicitly and verified that it's the one being used.

• sergiotapia

  today at 6:25 PM

  Be careful with openrouter. They routinely host quantized versions of models via their listed providers and the models just suck because of that. Use the original providers only.

  • nullbyte

    today at 8:04 PM

    I specifically do not use the CN/SG based original provider simply because I don't want my personal data traveling across the pacific. I try to only stay on US providers. Openrouter shows you what the quantization of each provider is, so you can choose a domestic one that's FP8 if you want

Been using GLM-4.7 for a couple weeks now. Anecdotally, it’s comparable to sonnet, but requires a little bit more instruction and clarity to get things right. For bigger complex changes I still use anthropic’s family, but for very concise and well defined smaller tasks the price of GLM-4.7 is hard to beat.

• monooso

  today at 7:22 PM

  This aligns very closely with my experience.

  When left to its own devices, GLM-4.7 frequently tries to build the world. It's also less capable at figuring out stumbling blocks on its own without spiralling.

  For small, well-defined tasks, it's broadly comparable to Sonnet.

  Given how incredibly cheap it is, it's useful even as a secondary model.

• rapind

  today at 7:32 PM

  Anecdotal, but I've been locked to Sonnet for the past 6-8 months just because they always seem to introduce throttling bugs with Opus where it starts to devour tokens or falls over. Very interested once open models close the gap to about 6 months.

Been playing with it in opencode for a bit and pretty impressed so far. Certainly more of an incremental improvement than a big bang change, but it does seem better a good bit better than 4.7, which in turn was a modest but real improvement over 4.6.

Certainly seems to remember things better and is more stable on long running tasks.

What is truly amazing here is the fact that they trained this entirely on Huawei Ascend chips per reporting [1]. Hence we can conclude the semiconductor to model Chinese tech stack is only 3 months behind the US, considering Opus 4.5 released in November. (Excluding the lithography equipment here, as SMIC still uses older ASML DUV machines) This is huge especially since just a few months ago it was reported that Deepseek were not using Huawei chips due to technical issues [2].

US attempts to contain Chinese AI tech totally failed. Not only that, they cost Nvidia possibly trillions of dollars of exports over the next decade, as the Chinese govt called the American bluff and now actively disallow imports of Nvidia chips as a direct result of past sanctions [3]. At a time when Trump admin is trying to do whatever it can to reduce the US trade imbalance with China.

[1] https://tech.yahoo.com/ai/articles/chinas-ai-startup-zhipu-r...

[2] https://www.techradar.com/pro/chaos-at-deepseek-as-r2-launch...

[3] https://www.reuters.com/world/china/chinas-customs-agents-to...

• raingrove

  today at 10:21 PM

  To be fair, the US ban on Nvidia chip exports to China began under the Biden administration in 2022. By the time Trump took office, it was already too late.

• bertili

  today at 9:08 PM

  Exactly. The emperor has no clothes. The largest investments in US tech in history and yet there less than a year of moat. OpenAI or Anthropic will not be able to compete with Chinese server farms and so the US strategy is misplaced investments that will come home to roast.

  And we will have Deepseek 4 in a few days...

• mark_l_watson

  today at 7:02 PM

  US Secretary of State Bressent just publicly said that the US needs to get along and cooperate with China. His tone was so different than previously in the last year that I listened to the video clip twice.

  Obviously for the average US tax payer getting along with China is in our interests - not so much our economic elites.

  I use both Chinese and US models, and Mistral in Proton’s private chat. I think it makes sense for us to be flexible and not get locked in.

  • Havoc

    today at 8:52 PM

    >His tone was so different than previously in the last year that I listened to the video clip twice.

    US bluff got called. A year back it looked like US held all the cards and could squeeze others without negative consequences. i.e. have cake and eat it too

    Since then: China has not backed down, Europe is talking de-dollarization, BRICS is starting to find a new gear on separate financial system, merciless mocking across the board, zero progress on ukraine, fed wobbled, focus on gold as alternate to US fiat, nato wobbled, endless scandals, reputation for TACO, weak employment, tariff chaos, calls for withdrawal of gold from US's safekeeping, chatter about dumping US bonds, multiple major countries being quite explicit about telling trump to get fucked

    Not at all surprised there is a more modest tone...none of this is going the "without negative consequences" way

    >Mistral in Proton’s private chat

    TIL

    • throw101010

      today at 9:29 PM

      Who could have predicted that cooperation with decades old allies would be more fruitful than spitting in their faces and threatening them on a weekly basis both economically and militarily... really nobody /s

      And yes, the consequence is strengthening the actual enemies of the USA, their AI progress is just one symptom of this disastrous US administration and the incompetence of Donald Trump. He really is the worst President of the USA ever, even if you were to just judge him on his leadership regarding technology... and I'm saying this while he is giving a speech about his "clean beautiful coal" right now in the White House.

• re-thc

  today at 6:21 PM

  > What is truly amazing here is the fact that they trained this entirely on Huawei Ascend chips

  Has any of these outfits ever publicly stated they used Nvidia chips? As in the non-officially obtained 1s. No.

  > US attempts to contain Chinese AI tech totally failed. Not only that, they cost Nvidia possibly trillions of dollars of exports over the next decade, as the Chinese govt called the American bluff and now actively disallow imports of Nvidia chips

  Sort of. It's all a front. On both sides. China still ALWAYS had access to Nvidia chips - whether that's the "smuggled" 1s or they run it in another country. It's not costing Nvidia much. The opening of China sales for Nvidia likewise isn't as much of a boon. It's already included.

  > At a time when Trump admin is trying to do whatever it can to reduce the US trade imbalance with China

  Again, it's a front. It's about news and headlines. Just like when China banned lobsters from a certain country, the only thing that happened was that they went to Hong Kong or elsewhere, got rebadged and still went in.

  • cherryteastain

    today at 6:39 PM

    > Has any of these outfits ever publicly stated they used Nvidia chips? As in the non-officially obtained 1s. No.

    Uh yes? Deepseek explicitly said they used H800s [1]. Those were not banned btw, at the time. Then US banned them too. Then US was like 'uhh okay maybe you can have the H200', but then China said not interested.

    [1] https://arxiv.org/pdf/2412.19437

    • re-thc

      today at 6:47 PM

      > Uh yes? Deepseek explicitly said they used H800s [1]. Those were not banned btw, at the time

      Then they haven't. I said the non-officially obtained 1s that they can't / won't mention i.e. those Blackwells etc...

• seydor

  today at 6:36 PM

  We can conclude that they ll flood the world with huawei inference chips from Temu and create worldwide AI pollution

So that was pony alpha (1). Now what's Aurora Alpha?

(1) https://openrouter.ai/openrouter/pony-alpha

Interesting timing — GLM-4.7 was already impressive for local use on 24GB+ setups. Curious to see when the distilled/quantized versions of GLM-5 drop. The gap between what you can run via API vs locally keeps shrinking. I've been tracking which models actually run well at each RAM tier and the Chinese models (Qwen, DeepSeek, GLM) are dominating the local inference space right now

I got fed up with GLM-4.7 after using it for a few weeks; it was slow through z.ai and not as good as the benchmarks lead me to believe (esp. with regards to instruction following) but I'm willing to give it another try.

• esafak

  today at 9:42 PM

  I forgot to add that GLM loves to perform destructive operations; it'll happily git reset/push to main. Put it on a very tight leash if you use it.

• valvar

  today at 5:30 PM

  Try Cerberas

  • odie5533

    today at 9:43 PM

    I spent $10 in 2 minutes with that and gave up

  • today at 5:32 PM

• w4yai

  today at 6:10 PM

  Synthetic is a bless when it comes to providing OSS models (including GLM), their team is responsive, no downtime or any issue for the last 6 months.

  Full list of models provided : https://dev.synthetic.new/docs/api/models

  Referal link if you're interested in trying it for free, and discount for the first month : https://synthetic.new/?referral=kwjqga9QYoUgpZV

It might be impressive on benchmarks, but there's just no way for them to break through the noise from the frontier models. At these prices they're just hemorrhaging money. I can't see a path forward for the smaller companies in this space.

• lukev

  today at 7:37 PM

  I expect that the reason for their existence is political rather than financial (though I have no idea how that's structured.)

  It's a big deal that open-source capability is less than a year behind frontier models.

  And I'm very, very glad it is. A world in which LLM technology is exclusive and proprietary to three companies from the same country is not a good world.

• syntaxing

  today at 5:42 PM

  Tim Dettmers had an interesting take on this [1]. Fundamentally, the philosophy is different.

  >China’s philosophy is different. They believe model capabilities do not matter as much as application. What matters is how you use AI.

  https://timdettmers.com/2025/12/10/why-agi-will-not-happen/

  • woeirua

    today at 5:55 PM

    Sorry, but that's an exceptionally unimpressive article. The crux of his thesis is:

    >The main flaw is that this idea treats intelligence as purely abstract and not grounded in physical reality. To improve any system, you need resources. And even if a superintelligence uses these resources more effectively than humans to improve itself, it is still bound by the scaling of improvements I mentioned before — linear improvements need exponential resources. Diminishing returns can be avoided by switching to more independent problems – like adding one-off features to GPUs – but these quickly hit their own diminishing returns.

    Literally everyone already knows the problems with scaling compute and data. This is not a deep insight. His assertion that we can't keep scaling GPUs is apparently not being taken seriously by _anyone_ else.

    • syntaxing

      today at 6:14 PM

      Was more mentioning the article about the economic aspect of China vs US in terms of AI.

      While I do understand your sentiment, it might be worth noting the author is the author of bitandbytes. Which is one of the first library with quantization methods built in and was(?) one of the most used inference engines. I’m pretty sure transformers from HF still uses this as the Python to CUDA framework

    • qprofyeh

      today at 6:10 PM

      There are startups in this space getting funded as we speak: https://olix.com/blog/compute-manifesto

  • re-thc

    today at 5:56 PM

    When you have export restrictions what do you expect them to say?

    > They believe model capabilities do not matter as much as application.

    Tell me their tone when their hardware can match up.

    It doesn't matter because they can't make it matter (yet).

• riku_iki

  today at 6:19 PM

  maybe being in China gives them advantage of electricity cost, which could be big chunk of bill..

  • riku_iki

    today at 9:17 PM

    Also, LLM prices include all other capital expenditures: building/maintaining datacenter, paying salary to SWEs, fees to financial transactions (investments) middlemen, which could be much cheaper in China.

If you're tired of cross-referencing the cherry-picked benchmarks, here's the geometric mean of SWE-bench Verified & HLE-tools :

Claude Opus 4.6: 65.5%

GLM-5: 62.6%

GPT-5.2: 60.3%

Gemini 3 Pro: 59.1%

Here is the pricing per M tokens. https://docs.z.ai/guides/overview/pricing

Why is GLM 5 more expensive than GLM 4.7 even when using sparse attention?

There is also a GLM 5-code model.

• logicprog

  today at 5:11 PM

  I think it's likely more expensive because they have more activated parameters, which kind of outweighs the benefits of DSA?

• l5870uoo9y

  today at 5:32 PM

  It's roughly three times cheaper than GPT-5.2-codex, which in turn reflects the difference in energy cost between US and China.

  • anthonypasq

    today at 5:44 PM

    1. electricity costs are at most 25% of inference costs so even if electricity is 3x cheaper in china that would only be a 16% cost reduction.

    2. cost is only a singular input into price determination and we really have absolutely zero idea what the margins on inference even are so assuming the current pricing is actually connected to costs is suspect.

  • re-thc

    today at 5:41 PM

    It reflects the Nvidia tax overhead too.

    • bigyabai

      today at 8:52 PM

      Not really, Western AI companies can set their margins at whatever they want.

GLM-4.7-Flash was the first local coding model that I felt was intelligent enough to be useful. It feels something like Claude 4.5 Haiku at a parameter size where other coding models are still getting into loops and making bewilderingly stupid tool calls. It also has very clear reasoning traces that feel like Claude, which does result in the ability to inspect its reasoning to figure out why it made certain decisions.

So far I haven't managed to get comparably good results out of any other local model including Devstral 2 Small and the more recent Qwen-Coder-Next.

• khimaros

  today at 8:19 PM

  minimax-m.2 is close

I'd say that they're super confident about the GLM-5 release, since they're directly comparing it with Opus 4.5 and don't mention Sonnet 4.5 at all.

I am still waiting if they'd launch GLM-5 Air series,which would run on consumer hardware.

• revolvingthrow

  today at 5:12 PM

  Qwen and GLM both promise the stars in the sky every single release and the results are always firmly in the "whatever" range

  • CuriouslyC

    today at 9:18 PM

    Qwen famously benchmaxxes. GLM is more robust, I'd say it's comparable to DeepSeek in that regard.

• esafak

  today at 4:53 PM

  I place GLM 4.7 behind Sonnet.

Really impressive benchmarks. It was commonly stated that open source models were lagging 6 months behind state of the art, but they are likely even closer now.

Probably related: https://news.ycombinator.com/item?id=46974853

• cmrdporcupine

  today at 5:31 PM

  yes, plenty of good convo over there, the two should probably be merged

What I haven't seen discussed anywhere so far is how big a lead Anthropic seems to have in intelligence per output token, e.g. if you look at [1].

We already know that intelligence scales with the log of tokens used for reasoning, but Anthropic seems to have much more powerful non-reasoning models than its competitors.

I read somewhere that they have a policy of not advancing capabilities too much, so could it be that they are sandbagging and releasing models with artificially capped reasoning to be at a similar level to their competitors?

How do you read this?

[1] https://imgur.com/a/EwW9H6q

• phamilton

  today at 6:50 PM

  Intelligence per token doesn't seem quite right to me.

  Intelligence per <consumable> feels closer. Per dollar, or per second, or per watt.

  • mnicky

    today at 7:50 PM

    It is possible to think of tokens as some proxy for thinking space. At least reasoning tokens work like this.

    Dollar/watt are not public and time has confounders like hardware.

GLM 5 beats Kimi on SWE bench and Terminal bench. If it's anywhere near Kimi in price, this looks great.

Edit: Input tokens are twice as expensive. That might be a deal breaker.

• bradfa

  today at 6:43 PM

  GLM-5 at FP8 should be similar in hardware demands to Kimi-K2.5 (natively INT4) I think. API pricing on launch day may or may not really indicate longer term cost trends. Even Kimi-K2.5 is very new. Give it a whirl and a couple weeks to settle out to have a more fair comparison.

• westernzevon

  today at 6:03 PM

  It seems to be much better at first pass tho. We'll see how real costs stack up

• dingnuts

  today at 5:57 PM

  [dead]

They increased their prices substantially

I kinda feel this bench-marking thing with Chinese models is like university Olympiads, they specifically study for those but when time comes for the real world work they seriously lack behind.

• OsrsNeedsf2P

  today at 6:16 PM

  I kinda feel like the goalposts are shifting. While we're not there yet, in a world where Chinese models surpass Western ones, HN will be nitpicking edge cases long after the ship sails

  • Oras

    today at 6:24 PM

    I don’t think it’s undermining the effort and improvement, but usability of these models aren’t usually what their benchmarks suggest.

    Last time there was a hype about GLM coding model, I tested it with some coding tasks and it wasn’t usable when comparing with Sonnet or GPT-5

    I hope this one is different

Why are we not comparing to opus 4.6 and gpt 5.3 codex...

Honestly these companies are so hard to takes seriously with these release details. If it's an open source model and you're only comparing open source - cool.

If you're not top in your segment, maybe show how your token cost and output speed more than make up for that.

Purposely showing prior-gen models in your release comparison immediately discredits you in my eyes.

• rolymath

  today at 7:10 PM

  I feel like you're over reacting.

  They're comparing against 5.2 xhigh, which is arguably better than 5.3. The latest from openai isn't smarter, it's slightly dumber, just much faster.

I predict a new speculative market will emerge where adherents buy and sell misween coded companies.

Betting on whether they can actually perform their sold behaviors.

Passing around code repositories for years without ever trying to run them, factory sealed.

It will be tough to run on our 4x H200 node… I wish they stayed around the 350B range. MLA will reduce KV cache usage but I don’t think the reduction will be significant enough.

The amount of times benchmarks of competitors said something is close to Claude and it was remotely close in practice in the past year: 0

• ionelaipatioaei

  today at 6:06 PM

  I honestly feel like people are brainwashed by anthropic propaganda when it comes to claude, I think codex is just way better and kimi 2.5 (and I think glm 5 now) are perfectly fine for a claude replacement.

  • sumedh

    today at 10:03 PM

    > I think codex is just way better

    Codex was super slow till 5.2 codex. Claude models were noticeably faster.

  • mark_l_watson

    today at 7:06 PM

    So much money is on the line for US super scalers that they probably pay for ‘pushes’ on social media. Maybe Chinese companies are doing the same.

    • GorbachevyChase

      today at 8:06 PM

      I would say that’s more certain than just a “probably“. I would bet that some of the ridiculous fear mongering about language models trying to escape their server, blackmail their developers, or spontaneously participating in a social network are all clandestine marketing campaigns. The technology is certainly amazing and very useful, but I don’t think any of these terminator stories were boosted by the algorithms on their own.

why don't they publish at ARC-AGI ? too expensive?

• Bolwin

  today at 5:19 PM

  Arc agi was never a good benchmark that tested spatial understanding more than reasoning. I'm glad it's no longer popular

  • falcor84

    today at 5:25 PM

    What do you mean? It definitely tests reasoning as well, and if anything, I expect spatial and embodied reasoning to become more important in the coming years, as AI agents will be expected to take on more real world tasks.

  • eugene3306

    today at 5:31 PM

    spatial or not, arc-agi is the only test that correlates to my impression with my coding requests

I wish China starts copying Demis' biotech models as well soon

Is this a lot cheaper to run (on their service or rented GPUs) than Claude or ChatGPT?

• esafak

  today at 5:01 PM

  Yes. https://z.ai/subscribe

  • leumon

    today at 5:35 PM

    although apparently only the max subscription includes glm-5

    • esafak

      today at 6:27 PM

      Yes, thank you for pointing that out. It's probably load management thing.

• su-m4tt

  today at 5:02 PM

  dramatically cheaper.

we're seeing so many LLM releases that they can't even keep their benchmark comparisons updated

Just tried it, its practically the same as glm-4.7 - it isn't as "wide" as claude or codex so even on a simple prompt is misses out on one important detail - instead of investigating it ploughs ahead with the next best thing it thinks you asked for instead of investigating fully before starting a project.

Earlier: https://news.ycombinator.com/item?id=46974853

[flagged]

• Aurornis

  today at 6:01 PM

  This account is named `testuser_xyz` and was registered seconds before posting this generic LLM-style output.

  The growing number of obvious LLM bots posting on Hacker News is getting worrisome.

  • minimaxir

    today at 6:06 PM

    That is what both the flagging mechanism and the green highlight for new accounts is for.

  • testuser_xyz

    today at 6:06 PM

    Hi, I am just using Hacker News as a playground to test some trash bot my customer begged me to write so that he can click on ads more effectively online. Hope you have a good day though :)

    • minimaxir

      today at 6:08 PM

      That is disrespectful to do in any community forum. Don't do it again.

      • testuser_xyz

        today at 6:09 PM

        yes, sorry

Whoa, I think GPT-5.3-Codex was a disappointment, but GLM-5 is definitely the future!

• cmrdporcupine

  today at 5:32 PM

  I find 5.3 very impressive TBH. Bigger jump than Opus 4.6.

  But this here is excellent value, if they offer it as part of their subscription coding plan. Paying by token could really add up. I did about 20 minutes of work and it cost me $1.50USD, and it's more expensive than Kimi 2.5.

  Still 1/10th the cost of Opus 4.5 or Opus 4.6 when paying by the token.

  • CuriouslyC

    today at 9:21 PM

    The Pro and Max plans can use it. Pro has 1 concurrent session.

• mnicky

  today at 5:33 PM

  > I think GPT-5.3-Codex was a disappointment

  Care to elaborate more?