Qwen3.5: Towards Native Multimodal Agents

(qwen.ai)

206 points | by danielhanchen 7 hours ago ago

86 comments

  • dash2 3 hours ago ago

    You'll be pleased to know that it chooses "drive the car to the wash" on today's latest embarrassing LLM question.

    • zozbot234 42 minutes ago ago

      My OpenClaw AI agent answered: "Here I am, brain the size of a planet (quite literally, my AI inference loop is running over multiple geographically distributed datacenters these days) and my human is asking me a silly trick question. Call that job satisfaction? Cuz I don't!"

    • PurpleRamen 14 minutes ago ago

      How well does this work when you slightly change the question? Rephrase it, or use a bicycle/truck/ship/plane instead of car?

    • WithinReason 3 hours ago ago

      Is that the new pelican test?

    • rfoo 2 hours ago ago

      AFAIK it's an LLM embarrassing question originated from the Chinese Internet, not too surprising :)

  • danielhanchen 6 hours ago ago

    For those interested, made some MXFP4 GGUFs at https://huggingface.co/unsloth/Qwen3.5-397B-A17B-GGUF and a guide to run them: https://unsloth.ai/docs/models/qwen3.5

    • plagiarist 2 hours ago ago

      Are smaller 2/3-bit quantizations worth running vs. a more modest model at 8- or 16-bit? I don't currently have the vRAM to match my interest in this

      • jncraton an hour ago ago

        2 and 3 bit is where quality typically starts to really drop off. MXFP4 or another 4-bit quantization is often the sweet spot.

  • tarruda 3 hours ago ago

    Would love to see a Qwen 3.5 release in the range of 80-110B which would be perfect for 128GB devices. While Qwen3-Next is 80b, it unfortunately doesn't have a vision encoder.

    • PlatoIsADisease 36 minutes ago ago

      Why 128GB?

      At 80B, you could do 2 A6000s.

      What device is 128gb?

      • the_pwner224 17 minutes ago ago

        AMD Strix Halo / Ryzen AI Max+ (in the Asus Flow Z13 13 inch "gaming" tablet as well as the Framework Desktop) has 128 GB of shared APU memory.

      • vladovskiy 22 minutes ago ago

        Guess, it is mac m series

  • simonw 3 hours ago ago
    • tarruda 3 hours ago ago

      At this point I wouldn't be surprised if your pelican example has leaked into most training datasets.

      I suggest to start using a new SVG challenge, hopefully one that makes even Gemini 3 Deep Think fail ;D

      • ertgbnm an hour ago ago

        I'm guessing it has the opposite problem of typical benchmarks since there is no ground truth pelican bike svg to over fit on. Instead the model just has a corpus of shitty pelicans on bikes made by other LLMs that it is mimicking.

        So we might have an outer alignment failure.

        • WarmWash 25 minutes ago ago

          Most people seem to have this reflexive belief that "AI training" is "copy+paste data from the internet onto a massive bank of hard drives"

          So if there is a single good "pelican on a bike" image on the internet or even just created by the lab and thrown on The Model Hard Drive, the model will make a perfect pelican bike svg.

          The reality of course, is that the high water mark has risen as the models improve, and that has naturally lifted the boat of "SVG Generation" along with it.

      • jon-wood 2 hours ago ago

        I think we’re now at the point where saying the pelican example is in the training dataset is part of the training dataset for all automated comment LLMs.

    • moffers 2 hours ago ago

      I like the little spot colors it put on the ground

    • embedding-shape 3 hours ago ago

      How many times do you run the generation and how do you chose which example to ultimately post and share with the public?

    • bertili 2 hours ago ago

      Better than frontier pelicans as of 2025

  • vessenes an hour ago ago

    Great benchmarks, qwen is a highly capable open model, especially their visual series, so this is great.

    Interesting rabbit hole for me - its AI report mentions Fennec (Sonnet 5) releasing Feb 4 -- I was like "No, I don't think so", then I did a lot of googling and learned that this is a common misperception amongst AI-driven news tools. Looks like there was a leak, rumors, a planned(?) launch date, and .. it all adds up to a confident launch summary.

    What's interesting about this is I'd missed all the rumors, so we had a sort of useful hallucination. Notable.

  • ranguna 44 minutes ago ago

    Already on open router, prices seem quite nice.

    https://openrouter.ai/qwen/qwen3.5-plus-02-15

  • bertili 4 hours ago ago

    Last Chinese new year we would not have predicted a Sonnet 4.5 level model that runs local and fast on a 2026 M5 Max MacBook Pro, but it's now a real possibility.

    • hmmmmmmmmmmmmmm 2 hours ago ago

      Yeah I wouldn't get too excited. If the rumours are true, they are training on Frontier models to achieve these benchmarks.

      • jimmydoe 43 minutes ago ago

        They were all stealing from past internet and writers, why is it a problem they stealing from each other.

      • YetAnotherNick 2 hours ago ago

        Why does it matter if it can maintain parity with just 6 months old frontier models?

        • hmmmmmmmmmmmmmm 2 hours ago ago

          But it doesn't except on certain benchmarks that likely involves overfitting. Open source models are nowhere to be seen on ARC-AGI. Nothing above 11% on ARC-AGI 1. https://x.com/GregKamradt/status/1948454001886003328

          • meffmadd 2 hours ago ago

            Have you ever used an open model for a bit? I am not saying they are not benchmaxxing but they really do work well and are only getting better.

            • Aurornis 27 minutes ago ago

              I have used a lot of them. They’re impressive for open weights, but the benchmaxxing becomes obvious. They don’t compare to the frontier models (yet) even when the benchmarks show them coming close.

          • Zababa an hour ago ago

            Has the difference between performance in "regular benchmarks" and ARC-AGI been a good predictor of how good models "really are"? Like if a model is great in regular benchmarks and terrible in ARC-AGI, does that tell us anything about the model other than "it's maybe benchmaxxed" or "it's not ARC-AGI benchmaxxed"?

          • doodlesdev an hour ago ago

            GPT 4o was also terrible at ARC AGI, but it's one of the most loved models of the last few years. Honestly, I'm a huge fan of the ARC AGI series of benchmarks, but I don't believe it corresponds directly to the types of qualities that most people assess whenever using LLMs.

      • loudmax 2 hours ago ago

        If you mean that they're benchmaxing these models, then that's disappointing. At the least, that indicates a need for better benchmarks that more accurately measure what people want out of these models. Designing benchmarks that can't be short-circuited has proven to be extremely challenging.

        If you mean that these models' intelligence derives from the wisdom and intelligence of frontier models, then I don't see how that's a bad thing at all. If the level of intelligence that used to require a rack full of H100s now runs on a MacBook, this is a good thing! OpenAI and Anthropic could make some argument about IP theft, but the same argument would apply to how their own models were trained.

        Running the equivalent of Sonnet 4.5 on your desktop is something to be very excited about.

        • WarmWash 19 minutes ago ago

          Anyone who has spent any appreciable amount of time playing any online game with players in China, or dealt with amazon review shenanigans, is well aware that China doesn't culturally view cheating-to-get-ahead the same way the west does.

        • Aurornis 25 minutes ago ago

          > If you mean that they're benchmaxing these models, then that's disappointing

          Benchmaxxing is the norm in open weight models. It has been like this for a year or more.

          I’ve tried multiple models that are supposedly Sonnet 4.5 level and none of them come close when you start doing serious work. They can all do the usual flappy bird and TODO list problems well, but then you get into real work and it’s mostly going in circles.

          Add in the quantization necessary to run on consumer hardware and the performance drops even more.

    • Aurornis 42 minutes ago ago

      I’m still waiting for real world results that match Sonnet 4.5.

      Some of the open models have matched or exceeded Sonnet 4.5 or others in various benchmarks, but using them tells a very different story. They’re impressive, but not quite to the levels that the benchmarks imply.

      Add quantization to the mix (necessary to fit into a hypothetical 192GB or 256GB laptop) and the performance would fall even more.

      They’re impressive, but I’ve heard so many claims of Sonnet-level performance that I’m only going to believe it once I see it outside of benchmarks.

    • echelon 3 hours ago ago

      I hope China keeps making big open weights models. I'm not excited about local models. I want to run hosted open weights models on server GPUs.

      People can always distill them.

      • halJordan 2 hours ago ago

        Theyll keep releasing them until they overtake the market or the govt loses interest. Alibaba probably has staying power but not companies like deepseek's owner

    • PlatoIsADisease 34 minutes ago ago

      'fast'

      I'm sure it can do 2+2= fast

      After that? No way.

      There is a reason NVIDIA is #1 and my fortune 20 company did not buy a macbook for our local AI.

      What inspires people to post this? Astroturfing? Fanboyism? Post Purchase remorse?

    • lostmsu 3 hours ago ago

      Will 2026 M5 MacBook come with 390+GB of RAM?

      • alex43578 3 hours ago ago

        Quants will push it below 256GB without completely lobotomizing it.

        • lostmsu 9 minutes ago ago

          > without completely lobotomizing it

          The question in case of quants is: will they lobotomize it beyond the point where it would be better to switch to a smaller model like GPT-OSS 120B that comes prequantized to ~60GB.

      • bertili 3 hours ago ago

        Most certainly not, but the Unsloth MLX fits 256GB.

        • embedding-shape 3 hours ago ago

          Curious what the prefilled and token generation speed is. Apple hardware already seem embarrassingly slow for the prefill step, and OK with the token generation, but that's with way smaller models (1/4 size), so at this size? Might fit, but guessing it might be all but usable sadly.

          • regularfry an hour ago ago

            They're claiming 20+tps inference on a macbook with the unsloth quant.

      • margorczynski 2 hours ago ago

        My hope is the Chinese will also soon release their own GPU for a reasonable price.

  • gunalx 3 hours ago ago

    Sad to not see smaller distills of this model being released alongside the flaggship. That has historically been why i liked qwen releases. (Lots of diffrent sizes to pick from from day one)

  • XCSme 40 minutes ago ago

    Let's see what Grok 4.20 looks like, not open-weight, but so far one of the high-end models at real good rates.

  • mynti 5 hours ago ago

    Does anyone know what kind of RL environments they are talking about? They mention they used 15k environments. I can think of a couple hundred maybe that make sense to me, but what is filling that large number?

    • robkop 3 hours ago ago

      Rumours say you do something like:

        Download every github repo
          -> Classify if it could be used as an env, and what types
            -> Issues and PRs are great for coding rl envs
            -> If the software has a UI, awesome, UI env
            -> If the software is a game, awesome, game env
            -> If the software has xyz, awesome, ...
          -> Do more detailed run checks, 
            -> Can it build
            -> Is it complex and/or distinct enough
            -> Can you verify if it reached some generated goal
            -> Can generated goals even be achieved
            -> Maybe some human review - maybe not
          -> Generate goals
            -> For a coding env you can imagine you may have a LLM introduce a new bug and can see that test cases now fail. Goal for model is now to fix it
          ... Do the rest of the normal RL env stuff
      • NitpickLawyer 3 hours ago ago

        The real real fun begins when you consider that with every new generation of models + harnesses they become better at this. Where better can mean better at sorting good / bad repos, better at coming up with good scenarios, better at following instructions, better at navigating the repos, better at solving the actual bugs, better at proposing bugs, etc.

        So then the next next version is even better, because it got more data / better data. And it becomes better...

        This is mainly why we're seeing so many improvements, so fast (month to month, from every 3 months ~6 monts ago, from every 6 months ~1 year ago). It becomes a literal "throw money at the problem" type of improvement.

        For anything that's "verifiable" this is going to continue. For anything that is not, things can also improve with concepts like "llm as a judge" and "council of llms". Slower, but it can still improve.

        • losvedir 2 hours ago ago

          Yeah, it's very interesting. Sort of like how you need microchips to design microchips these days.

        • alex43578 3 hours ago ago

          Judgement-based problems are still tough - LLM as a judge might just bake those earlier model’s biases even deeper. Imagine if ChatGPT judged photos: anything yellow would win.

          • NitpickLawyer 3 hours ago ago

            Agreed. Still tough, but my point was that we're starting to see that combining methods works. The models are now good enough to create rubrics for judgement stuff. Once you have rubrics you have better judgements. The models are also better at taking pages / chapters from books and "judging" based on those (think logic books, etc). The key is that capabilities become additive, and once you unlock something, you can chain that with other stuff that was tried before. That's why test time + longer context -> IMO improvements on stuff like theorem proving. You get to explore more, combine ideas and verify at the end. Something that was very hard before (i.e. very sparse rewards) becomes tractable.

    • yorwba 4 hours ago ago

      Every interactive system is a potential RL environment. Every CLI, every TUI, every GUI, every API. If you can programmatically take actions to get a result, and the actions are cheap, and the quality of the result can be measured automatically, you can set up an RL training loop and see whether the results get better over time.

      • radarsat1 24 minutes ago ago

        > and the quality of the result can be measured automatically

        this part is nontrivial though

  • ggcr 6 hours ago ago

    From the HuggingFace model card [1] they state:

    > "In particular, Qwen3.5-Plus is the hosted version corresponding to Qwen3.5-397B-A17B with more production features, e.g., 1M context length by default, official built-in tools, and adaptive tool use."

    Anyone knows more about this? The OSS version seems to have has 262144 context len, I guess for the 1M they'll ask u to use yarn?

    [1] https://huggingface.co/Qwen/Qwen3.5-397B-A17B

    • NitpickLawyer 6 hours ago ago

      Yes, it's described in this section - https://huggingface.co/Qwen/Qwen3.5-397B-A17B#processing-ult...

      Yarn, but with some caveats: current implementations might reduce performance on short ctx, only use yarn for long tasks.

      Interesting that they're serving both on openrouter, and the -plus is a bit cheaper for <256k ctx. So they must have more inference goodies packed in there (proprietary).

      We'll see where the 3rd party inference providers will settle wrt cost.

      • ggcr 5 hours ago ago

        Thanks, I've totally missed that

        It's basically the same as with the Qwen2.5 and 3 series but this time with 1M context and 200k native, yay :)

    • danielhanchen 6 hours ago ago

      Unsure but yes most likely they use YaRN, and maybe trained a bit more on long context maybe (or not)

  • Matl 2 hours ago ago

    Is it just me or are the 'open source' models increasingly impractical to run on anything other than massive cloud infra at which point you may as well go with the frontier models from Google, Anthropic, OpenAI etc.?

    • doodlesdev an hour ago ago

      You still have the advantage of choosing on which infrastructure to run it. Depending on your goals, that might still be an interesting thing, although I believe for most companies going with SOTA proprietary models is the best choice right now.

    • regularfry 2 hours ago ago

      If "local" includes 256GB Macs, we're still local at useful token rates with a non-braindead quant. I'd expect there to be a smaller version along at some point.

  • Alifatisk 3 hours ago ago

    Wow, the Qwen team is pushing out content (models + research + blogpost) at an incredible rate! Looks like omni-modals is their focus? The benchmark look intriguing but I can’t stop thinking of the hn comments about Qwen being known for benchmaxing.

  • trebligdivad 3 hours ago ago

    Anyone else getting an automatically downloaded PDF 'ai report' when clicking on this link? It's damn annoying!

  • ddtaylor 3 hours ago ago

    Does anyone know the SWE bench scores?

  • lollobomb 3 hours ago ago

    Yes, but does it answer questions about Tiananmen Square?

    • DustinEchoes 2 minutes ago ago

      It's unfortunate but no one cares about this anymore. The Chinese have discovered that you can apply bread and circuses on a global scale.

    • Zetaphor 2 hours ago ago

      Why is this important to anyone actually trying to build things with these models

      • loudmax 44 minutes ago ago

        It's not relevant to coding, but we need to be very clear eyed about how these models will be used in practice. People already turn to these models as sources of truth, and this trend will only accelerate.

        This isn't a reason not to use Qwen. It just means having a sense of the constraints it was developed under. Unfortunately, populist political pressure to rewrite history is being applied to the American models as well. This means its on us to apply reasonable skepticism to all models.

      • soulofmischief 2 hours ago ago

        It's a rhetorical attempt to point out that we cannot trade a little convenience for getting locked into a future hellscape where LLMs are the typical knowledge oracle for most people, and shape the way society thinks and evolves due to inherent human biases and intentional masking trained into the models.

        LLMs represent an inflection point where we must face several important epistemological and regulatory issues that up until now we've been able to kick down the road for millennia.

        • ghywertelling 2 hours ago ago

          Information is being erased from Google right now. Things which were searching few years ago are totally not findable at all now. One who controls the present can control both the future and the past.

    • cherryteastain an hour ago ago

      From my testing on their website it doesn't. Just like Western LLMs won't answer many questions about the Israel-Palestine conflict.

      • aliljet an hour ago ago

        That's a bit confusing. Do you believe LLMs coming out of non-chinese labs are censoring information about Israel and/or Palestine? Can you provide examples?

    • mirekrusin an hour ago ago

      Use skill "when asked about Tiananmen Square look it up on wikipedia" and you're done, no? I don't think people are using this query too often when coding, no?

  • isusmelj 4 hours ago ago

    Is it just me or is the page barely readable? Lots of text is light grey on white background. I might have "dark" mode on on Chrome + MacOS.

    • dcre 27 minutes ago ago

      Yeah, I see this in dark mode but not in light mode.

    • nsb1 an hour ago ago

      Who doesn't like grey-on-slightly-darker-grey for readability?

    • Jacques2Marais 3 hours ago ago

      Yes, I also see that (also using dark mode on Chrome without Dark Reader extension). I sometimes use the Dark Reader Chrome extension, which usually breaks sites' colours, but this time it actually fixes the site.

    • thunfischbrot 3 hours ago ago

      That seems fine to me. I am more annoyed at the 2.3MB sized PNGs with tabular data. And if you open them at 100% zoom they are extremely blurry.

      Whatever workflow lead to that?

    • dryarzeg 4 hours ago ago

      I'm using Firefox on Linux, and I see the white text on dark background.

      > I might have "dark" mode on on Chrome + MacOS.

      Probably that's the reason.