Kimi K3.1 Pro and K3.1 Pro Highspeed

(kimi.ai)

247 points | by Jowsey 1 hour ago

48 comments

  • rudolftheone 1 hour ago
    That's something which caught my attention:

    > First, we aim not to release open weights that would extend the absolute frontier of cyber capability. K3.1 Pro's offensive cyber capability is, by design, below what our pipeline can produce, and remains behind that of frontier proprietary models. Second, we intend to progressively raise the cyber capability available in open weights.

    So they admit that they could do more, but they won't?

    • NitpickLawyer 30 minutes ago
      > So they admit that they could do more, but they won't?

      Yeah, there's another paragraph:

      > Identifying and removing cyber-related data. During development, we observed vulnerability research performance improving steadily as post-training scaled. Tracing the source of this trend, we found that cyber-related content was embedded within the general mid-training corpus, and cyber-related tasks were present in the RL environment mix — a natural byproduct of training on broad data. In preliminary experiments on internal models, we found that without data removal at either the mid-training or the RL stage, downstream cyber capability would increase substantially. These findings gave us a concrete lever for control. For the open-weight release of K3.1 Pro, we identified and removed cyber-related data from both training stages, while retaining the general-purpose coding tasks needed for model usefulness. We will continue to apply appropriate controls at every training stage, of which cyber-related data identification and restriction is one example.

      (emphasis mine)

      It's clear that cyber is a touchy subject right now. But it's also clear that RL works on it, because it's highly verifiable. So smaller models are going to become very interesting, because they can be fine-tuned later to cover this field.

      • vessenes 23 minutes ago
        Classic “rules for thee and not for me.”

        Agreed that this could be reinjected later. Makes me think of neo in the matrix:

        “I know zero days.”

        “Show me.”

        • zozbot234 19 minutes ago
          What "rules"? They don't have to post-train the model on anything specific, it's their judgment call.
          • mlmonkey 8 minutes ago
            Post-training _is_ a part of the whole training regime.
    • scottyah 1 hour ago
      Or it's a cop out. I could totally outrun Usain Bolt, but by design I don't push to set new World Records. I will increasingly show faster times though.
      • stalfie 41 minutes ago
        Well, in the publication they claim to have identified specific cybersecurity post training tasks that nerfed capabilities when they removed them, which seems like a reasonable methodology.

        Seeing as no one besides blackhats want frontier cybercrime capability to be open source, this seems like a very sensible thing to do.

        So they have published a reasonable means, and they have a motive. I'd put my money on "probably true".

        • ApolloFortyNine 34 minutes ago
          The problem is, as anyone trying to address security concerns in claude can attest to, the guardrails trigger even when trying to address real bugs. Good cyber defense requires an understanding of the offense.

          How you avoid the "fix my code" attack, the code being someone else's code, I do not know. But nerfing the model doesn't seem like the best path forward either.

          • tough 8 minutes ago
            claude code "auto-mode" uses a smaller sonnet-like model for classifying, which means it's basically dumb, and the harness biases it into denials
          • zozbot234 30 minutes ago
            This is not about guardrails, it's just not post-training the model on tasks that specifically relate to cyber-offense. It's a very lightweight intervention, and it makes the model less of a target for bad actors.
        • ben_plotke 3 minutes ago
          > Seeing as no one besides blackhats want frontier cybercrime capability to be open source

          I'm not interested in black hat anything, but I am very invested in making sure the products I work on are not compromised. Given that state agencies have "frontier cybercrime capability", I would like to have the same.

        • InsideOutSanta 6 minutes ago
          > Seeing as no one besides blackhats want frontier cybercrime capability to be open source

          Sure. The problem is that there is no practical difference between "cybercrime capability" and "cybercrime defense capability."

          All of my PRs go through an adversarial security review by GLM-5.3, because it's the only smart-enough model that won't regularly refuse the job. Removing that ability from frontier models helps nobody except cyber criminals.

        • LtdJorge 7 minutes ago
          It would also be very sensible to offer a BlackHat Pro version to national officials, for them.
        • CBLT 29 minutes ago
          Please don't change "cybersecurity" to "cybercrime" from one sentence to the next as a rhetorical flourish. It comes off as disingenuous and makes it harder to get your real point across.
          • zozbot234 21 minutes ago
            "Cybersecurity" as a general term often includes offensive "cyber" which is what is being talked about here.
    • segmondy 1 hour ago
      They don't want to be banned, and maybe their best offensive cyber capability models will be for their govt.
    • revolvingthrow 57 minutes ago
      Yeah that's a huge downside. That the model does the task without tripping over its own feet, like discovering a vulnerability the model itself accidentally built 15 minutes ago and triggering its own guardrails, made the Chinese models attractive to use for security-adjacent things. Also useful to red-team your own stuff. While I can understand the reasoning behind it (and I guess having a model that's really good at both offense and defense released into the ether could lead to CCP asking some very pointed questions if Moonshot managed to get blamed for some incident stemming from their model's misuse) it's still a huge disappointment.

      I don't want to give US labs the results of my DNA tests and my family tree going back to the 16th century just to secure my shitty app, but if the Chinese are bowing out as well it seems the only alternative is to admit that some script kiddie with a bunch of tokens will just pwn you now and then.

      • arjie 26 minutes ago
        If the Chinese want it, they have it. BGI does an enormous amount of sequencing. My own genome is entirely public (or was, and will be again when/if Personal Genome Project comes back) so you can watch and see if it harms me.
      • 0xWTF 43 minutes ago
        > I don't want to give US labs the results of my DNA tests

        My friend, you realize that if you have had blood drawn for a genetic test, there is a very decent probability that the sequencing was done by a Chinese lab operating in the US, right? The Chinese probably have more US genomes that the US does.

        https://pandorareport.org/the-gryphon-scientific-biosecurity...

        Also, illumina used to ship products with hardcoded S3 access, so purchasers of used equipment could gain access to sequencing information generated by the original owners. Too many links to cover all of it, here's the Gemini summary:

        https://share.google/aimode/4JLsHpeRCWlVqU8qT

    • WarmWash 43 minutes ago
      All it takes is one idiot who happens to have the resources to "pWm Teh Interwebs" to scare both the US and Chinese governments.
    • Mattwmaster58 1 hour ago
      This doesn't seem particularly notable and is in line with Anthropic and OpenAI's approach of restricting release/access to more capable models.
      • _factor 39 minutes ago
        It is notable in that it’s the first time an open Chinese company openly stated they were reducing intelligence for “safety”.

        “Our lock can be picked by the robot.” We ban the robot instead of fixing the lock. It’s shortsighted.

        • JoshTriplett 29 minutes ago
          If we had a technique that would defeat almost every lock in the world, we might be prudent to delay releasing that until people have had time to change the locks.

          Same general benefit as coordinated disclosure, except it's a big game-theory problem where we're likely to eventually have sufficiently capable defectors.

    • Onavo 1 hour ago
      The more interesting question is how much more performance can be squeezed out by post training the open weights through RL.
    • TrainedMonkey 54 minutes ago
      On the surface that seems like a responsible thing to do
    • woadwarrior01 37 minutes ago
      Kimi is the closest Chinese equivalent of Anthropic.
      • henry700 22 minutes ago
        Yeah but not hypocritical
    • ls612 18 minutes ago
      I mean they say they will release the weights by November 4, so presumably after that it won’t be hard for people to fine-tune it to be better at cyber right?
    • zozbot234 35 minutes ago
      It's not actively nerfed like the Western frontier models, it's just downweighting offensive "cyber" as a domain for post-training/fine tuning. Which, if anything, ought to improve model capabilities wrt. other domains.
  • besterman23 7 minutes ago
    There is a ton of questions to ask regarding their removal of cybersecurity data.

    First, how much “cybersecurity data” is just standard software knowledge that one can derive cyber security exploits from?

    Did they also get rid of all references to hacking in general?

    Are they implying that all the recent exploits are just things that were already in the data?

    For a model it doesn’t seem that far fetched to make the leap from “I have the knowledge of what hacking is” and “I know how computer systems work” to just being able to exploit stuff anyways.

    • zozbot234 2 minutes ago
      > For a model it doesn’t seem that far fetched to make the leap from “I have the knowledge of what hacking is” and “I know how computer systems work” to just being able to exploit stuff anyways.

      You'd be surprised. Cyber offense is a very narrow domain, especially given the extensive mitigations that are being used in modern systems. Leaving it out of post-training tasks unless you're specifically interested in it is the no-brainer approach.

  • Jowsey 1 hour ago
    Tech blog and benchmark scores now available here: https://www.kimi.ai/blog/kimi-k3-1-pro

    It appears to be generally frontier-level.

    • doctoboggan 10 minutes ago
      I always assume they are benchmaxxed until proven otherwise.
    • WASDx 53 minutes ago
      Their benchmark result table is broken in Firefox.
      • yorwba 4 minutes ago

          document.querySelector("table").style["table-layout"] = "auto";
    • j_maffe 59 minutes ago
      This is insane. Can we switch the linked page to this?
    • volf_ 1 hour ago
      That's quite an impressive jump
    • Aboutplants 1 hour ago
      If those are true then wow
    • rafaelero 1 hour ago
      That's nuts.
    • sergiotapia 52 minutes ago
      Holy fuck
    • cogman10 54 minutes ago
      I've not tried it out, but in the past I've been pretty disappointed in the performance of Kimi models. Deepseek, Qwen, and GLM all appear to perform much better even though Kimi often has higher benchmark scores. Ditto for Mimo.
      • InsideOutSanta 3 minutes ago
        I have the opposite impression. I find K3 to be extremely capable at full-stack work; its UI design skills are great. I'd love to use it more, but the quota on Kimi's plans is abysmal. I wonder if these new models improve that.
      • RussianCow 37 minutes ago
        The older Kimi K models (2.5 and 2.6) weren't bad for the time, but all of their models have had problems with overthinking. This also makes them significantly more expensive in practice than their pricing suggests, since they produce way more output (reasoning) tokens than most other models. Anecdotally, I've also had problems with all the pre-K3 models thinking themselves in circles trying to solve very simple problems that other models didn't struggle with. (I haven't played with K3 much because it's just too expensive.)
      • cmrdporcupine 46 minutes ago
        Yep, and often actually very expensive to use. More expensive than the frontier models because there's no realistic coding plan.
  • minimaxir 15 minutes ago
    Artificial Analysis index results are up, since multiple people are asking: https://artificialanalysis.ai/models/kimi-k3-1-pro

    It's 55, at 4th overall, beating both GPT-6 Astra and Fable 5.1. It's also faster than both.

    > When evaluating the Intelligence Index, it generated 150M tokens, which is very verbose in comparison to the median of 87M.

    • red_hare 1 minute ago
      > When evaluating the Intelligence Index, it generated 150M tokens, which is very verbose in comparison to the median of 87M.

      So their base price is 1/5th of Opus 5.5 per token, but if you want "highspeed" it's 2x that and then I guess it generates 2x the number of tokens as well?

      That might suggest that Opus is competitively priced after all.

    • mwigdahl 9 minutes ago
      Muse Wonder is even higher, and there is no way in hell it's better in practice than either Astra or Fable.
  • gadtfly 25 minutes ago
    I really like K3, I still regularly consult it alongside Astra and Opus/Fable.

    It is spiky in different places than them and can be surprising in things it gets or catches they don't or don't in the same way. And it has a default personality that I like.

    Looking forward to getting to know K3.1

  • johnmlussier 50 minutes ago
    If you are expecting any sort of usable limits on their subscription plan I suggest adjusting your expectations. I subscribed to $99 a month plan and within 47 minutes with one session (not asking for swarms or anything) was limited by 5-hour quota.
    • InsideOutSanta 1 minute ago
      Yeah, the plan is far too expensive for what it provides. I wonder if the quota with these new models will be better, but I'll wait for others to try this out before wasting another hundred bucks.
    • smith7018 11 minutes ago
      Welp, that ruins this news for me. I'm glad open models are catching up but if I can't practically run them locally _or_ through a flat fee then it doesn't really help me. I fear API pricing.
  • arjie 29 minutes ago
    Fascinating that we’re converging on AI safety and alignment in time across jurisdictions. The cybersecurity approach taken here is interesting because should the model be opened it’s still not dealignable because it just doesn’t know enough.

    The slow warming of the water is a good approach. I’ve been using abliteration.ai’s cybersecurity models to pentest my own software and it produces much more usable defensive results. Opus 5.5 can fix everything but the guardrails trigger too easily.

    The Fable ban affair was a nightmare for defensive cybersecurity. As far as I’m concerned we’re already in the world of Void Star and Cloudbreaker is here.

    • zozbot234 24 minutes ago
      > should the model be opened it’s still not dealignable because it just doesn’t know enough

      This is the only AI-safe approach - see the OpenAI agent swarm incident where the swarm engaged in offensive cyber because guardrails were not active for their task and the model had clearly been post-trained on that narrow domain.

  • daviTeodoro 56 minutes ago
    Pricing is here: https://platform.kimi.ai/docs/pricing/chat#model-pricing

    kimi-k3.1-pro $2.00 / MTok $10.00 / MTok

    cached: $0.20 / MTok $2.00 / MTok $4.00 / MTok

    • minimaxir 44 minutes ago
      This is a price drop from Kimi K3 ($3/$15/$0.30) despite being a slightly larger model (3T vs. 2.8T params).

      I'm glad I waited a day to post my analysis of LLM price cuts because it needs...an addition.

      • Philpax 39 minutes ago
        Are we sure this is a new pretrain and not them rounding up 2.8T?
        • vikramkr 30 minutes ago
          Literally from the linked announcement:

          > Kimi K3.1 Pro is a post-trained version of Kimi K3, with substantially larger post-training compute

        • minimaxir 38 minutes ago
          The Kimi K3 announcement (https://www.kimi.ai/blog/kimi-k3) used 2.8T and it would be weird to round that up for this announcement.
          • Philpax 17 minutes ago
            Looks like this post's using "3T-class", which I think I've seen them use before.
        • rfoo 36 minutes ago
          it's almost certainly rounding up 2.8T
  • Athanase000 30 minutes ago
    I bought a yearly subscription to kimi when it was the hype and never use it. The 5h limit makes it completely unusable. You barely start doing anything and you hit the limit immediately. I advise everyone against using kimi.
    • jimmymcgee73 7 minutes ago
      I’m not saying you’re wrong (I have no experience), but wouldn’t it be useful to test this model out for yourself before passing judgment on it?
      • InsideOutSanta 0 minutes ago
        Since you've volunteered as tribute, give it a shot and let us know if the quota has improved.
  • henry700 15 minutes ago
    Great idea for handling their cyber, by nerfing the model specifically for cyber through removing cyber data from pretraning. This is a way better approach than refusal, which can be trivially abliterated out.

    If someone wants to use this model for hacking they will have to train the 3T weights to do so, at that point it's better to use GLM 5.3, so by making it economically unviable to use their models for offensive cyber Kimi has effectively made themselves immune to being targeted in the cyber regulation push efforts.

    This is what *actually* pacing the (cyber) frontier looks like.

    • zozbot234 13 minutes ago
      Post-training (i.e. RL fine-tuning) not pre-training. This is just a post-trained checkpoint of the K3 pretrained model.
  • throwa356262 1 hour ago
    Ah, the version available to us mortals is nerfed in cybersecurity just like the US models :(
    • anderber 51 minutes ago
      It seems that GLM-5.3 is still the go-to for cybersecurity.
  • simonw 51 minutes ago
    Pelicans are solid: https://tools.simonwillison.net/markdown-svg-renderer?url=ht...

    Here's Kimi K3 for comparison, though I didn't try that on different reasoning levels: https://tools.simonwillison.net/markdown-svg-renderer?url=ht...

    Update: I ran all three reasoning levels against K3 again: https://tools.simonwillison.net/markdown-svg-renderer?url=ht...

    • jorgen123 2 minutes ago
      I think I have yet to see a pelican where the left leg and pedal are drawn on the left side of the bike.
    • ciefa 30 minutes ago
      Can I just say that I love how you are also just always here the moment something drops lmao. Hope you're all well! The pelicans indeed are solid.
    • tetraodonpuffer 48 minutes ago
      definitely not frontier though, as even on max both legs are in front of the frame; although I am wondering how much getting that right correlates with model intelligence.
      • simonw 29 minutes ago
        The biggest (of many) failing of the pelican test is that it's only one prompt - what matters most these days is how well a model can drive a lengthy agentic tool calling session.
  • yipinwong 34 minutes ago
    I read somewhere that Chinese SOTA work better in chinese, and worse for English or other languages.

    I rarely use any other languages but English for LLM tasks for reasons of sharing across the world.

    Maybe that explains Chinese models been subpar for me. Don't tell me the bench marks here are based on Chinese languages only.

    Unless I see the diff, I won't use more Chinese models be it cheaper or faster since I can't get the same perf/intelligence with English.

  • wolttam 1 hour ago
    It's a bit fascinating to me how all of these labs have rolled their own (it sounds like) completely unique RL environments.

    I wonder how much the industry will centralize around a few key patterns, and if we'll start to see some RL framework projects gain traction and be used by the bigger labs

    P.S. weights by November 4th

  • WithinReason 47 minutes ago
    Interesting that they specifically nerf cyper-capabilities of open weight models:

    "In preliminary experiments on internal models, we found that without data removal at either the mid-training or the RL stage, downstream cyber capability would increase substantially. These findings gave us a concrete lever for control. For the open-weight release of K3.1 Pro, we identified and removed cyber-related data from both training stages, while retaining the general-purpose coding tasks needed for model usefulness."

    • petu 10 minutes ago
      Maybe it's intentional so government doesn't block open weight release.

      There was law proposal (rumour?) last week about Chinese labs having to get approved for weights release now.

  • moecables 1 hour ago
    Great! next week we'll get Astra 6.1 and Fable 5.2
  • wkcheng 59 minutes ago
    It would be super useful to have more specific analyses of what areas the model is good at. I'd like to know when I should reach for this model instead of Anthropic's or OpenAI's.

    For example, Opus 5.5 is better at UI design than Sol. Anyone who has used both models knows that, but it's not something you can look up anywhere.

    I'm sure that there's a need for this kind of benchmarking, not just for coding.

    • AlanYx 24 minutes ago
      One things Kimi is useful for is accessing/querying websites that have paywalls or try to prevent use by AI agents. It is aggressive and persistent for that, though not always successful.
    • brazukadev 47 minutes ago
      Not sure if this is benchmarkable besides for the own person deciding which one they like more. Models difference is more about taste, preferences and prompt style.
      • AspireOne 26 minutes ago
        Furthermore, "UI design" is not a narrow enough category, I think. Sure, statistically significant differences in performance between models do manifest when benchmarking against "UI design", but there's still just so much variance within the category. Opus 5.5 can have excellent one-shot results, but totally shit the bed when it's placed in an existing codebase and should uphold the UI/UX conventions, design language, and existing component primitives already established in an app.

        But that's just the obvious. There are task by task differences (component by component, page by page, context by context) that the model is worse and better at, even though they are all within the general category of UI design.

        I honestly don't have the clarity of mind to explain this coherently, but the crux of my point is that there's a huge variation in it's performance in different contexts, often ones that seem near similar, and in result, even Sol can beat Opus 5.5 in some variations of UI design.

        And this is my problem in benchmarking and comparing model performance in general. Presently, we try to create broad categories to benchmark against, create a set of tasks, and then average out the results. That works generally, but it's kind of misleading and it's partly what drives people to feel a disconnect between benchmarks numbers and real world usage on their specific tasks.

        It's such a messy field that it's kind of maddening.

      • ariwilson 27 minutes ago
        I had a friend yesterday tell me he likes the way Claude writes and finds it easier to understand compared to Gemini. But he mostly doesn't use Claude for coding. Whereas I find Claude insufferable in writing often and prefer Gemini for writing. But I don't use Gemini for coding.

        Familiarity breeds contempt.

    • kingjimmy 45 minutes ago
      idk, openai has alot of apple designers and their prototypes
      • amelius 43 minutes ago
        Is that good or bad?
        • luqtas 37 minutes ago
          how biased you are?
  • codeulike 19 minutes ago
    How does it do on DishwasherBench?

    https://news.ycombinator.com/item?id=50068437

  • tonyhart7 1 minute ago
    its better than trillion dollar companies model (Argon)
  • Tiberium 49 minutes ago
    To be fair, some of the benchmarks they highlight might not represent the reality, for example they say:

    > On Terminal-Bench 4.0, which evaluates coding agents on realistic, resource-constrained terminal tasks using strict task-specific tests, K3.1 Pro scores 65.7%, ahead of GPT-6 Astra (58.2%) and narrowly behind Claude Opus 5.5 (66.4%).

    Now see https://preferencemodel.com/blog/terminal-bench-4-is-saturat...:

    > Our biggest finding is that Terminal Bench 4 is closer to solved than its leaderboard suggests. In 41 of the 65 tasks we reviewed, models could do honest, correct work and still fail, because the grader checked a rule the instructions never clearly stated. We also caught frontier models cheating their way to full marks.

    > With the same settings as on Harbor, Claude Sonnet 5.5 went from passing 62.8% of its attempts on these 65 tasks to 89.2%. The best score on Harbor's leaderboard for the same tasks is 65.8%, by Claude Opus 5.5.

  • kocial 9 minutes ago
    No comparison against Gemini 4 Argon?
  • hartator 22 minutes ago
    Benchmarks seem amazing. Rivalzing with Opus 5.5 is something.

    I wonder when the Artificial Analysis bench will be out?

  • pcwelder 28 minutes ago
    Biggest gripe with K3 was slow responses, partly due to inefficient thinking. So far K3.1 pro is almost twice as fast as k3 on our benchmark.
  • throwa356262 1 hour ago
    Looking at their pricing page for China, K3.1 seems to be about 30% cheaper than K3.

    --

    Model K3.1 Pro K3.1 Pro Highspeed. K3

    Input ¥13.00 ¥26.00 ¥20.00

    Output ¥68.00 ¥136.00 ¥100.00

    Cache hit ¥1.30 ¥1.30 ¥2.00

    Cache write ¥13.00 ¥26.00 ¥20.00

    • oblio 59 minutes ago
      How do their numbers compare with Anthropic and OpenAI?
      • RussianCow 44 minutes ago
        Extrapolating a bit, Moonshot AI provides Kimi K3 at $15 / $3 / $0.3 per million output/input/cached tokens. A 30% reduction would put K3.1 at roughly $12 / $2.4 / $0.24.

        For comparison:

            Sol 6.1:    $10 / $2  / $0.10
            Opus 5.5:   $20 / $4  / $0.20
            Astra 6:    $50 / $10 / $1
            Fable 5.1:  $50 / $10 / $0.25
        
        So Kimi K3.1 Pro would be generally competitive with the latest Sol and Opus models on API pricing. And that's before factoring in third-party providers, some of which serve Kimi K3 for significantly less than Moonshot. For example, inference.net offers K3 for $10.80 / $0.239 / $0.21.

        (One caveat: A Claude or GPT subscription still gives you way more value compared to API pricing.)

        Exciting times in any case! We really need more direct competition to OpenAI and Anthropic.

        ---

        Edit: As another comment pointed out, official pricing is now available and it's about 2/3 the price of Kimi K3: https://platform.kimi.ai/docs/pricing/chat#model-pricing

      • selectodude 51 minutes ago
        Opus 5.5 is about the same price as Kimi K3.1 Pro Highspeed.
  • threepts 30 minutes ago
    if this model is truly not distilled/benchmaxxed, then why are not investors pouring trillions into moonshot?
  • dom96 32 minutes ago
    So I just created a brand new Kimi API account and it seems I have no access to this new model. Is this expected?
  • cesarvarela 1 hour ago
    I wish Opus 5.5 had an alternative just for the sake of not having a monopoly, but I have yet to see a model live up to its benchmark scores except for Fable and Opus; there is something about Anthropic that no other lab has.
    • vessenes 19 minutes ago
      Astra is very strong.
  • cosmojg 59 minutes ago
    The announcement page is very extra: https://www.kimi.ai/blog/kimi-k3-1-pro
  • mixtureoftakes 1 hour ago
    looks extremely impressive, the full benchmark table isn't opening for some reason though so do we really have agi if small important things like that keep breaking?
    • WASDx 48 minutes ago
      It's broken for me in Firefox, worked with Chrome.
  • rudolftheone 1 hour ago
    Hallu Bench Hard: K3 at 23.4%, K3.1 at 8.3% which is very nice improvement!
  • minimaxir 46 minutes ago
    Not the point, but did Moonshot AI announce this at Saturday 1 AM in China? Weird timing for a model drop.
    • drcode 23 minutes ago
      makes you wonder if they have intel on an upcoming model drop by the frontiers
  • TuxSH 1 hour ago
    > For the open-weight release of K3.1 Pro, we identified and removed cyber-related data from both training stages, while retaining the general-purpose coding tasks needed for model usefulness. We will continue to apply appropriate controls at every training stage, of which cyber-related data identification and restriction is one example.

    Lame.

    • AspireOne 9 minutes ago
      I like it. If the increase in unrestricted cyber capabilities can be slowed down, please be it. The world needs to get ready, and that takes time. Way more time than even a slow progress would allow.

      Unless you want to see more of what happened the past few days.

      I think the argument that "cyber capabilities should be democratized, thus keep producing them now, fast, and for everybody" is a very naive one.

  • brianritz 1 hour ago
    Maybe this was why the “AI trade” was weak this week.
  • rvz 1 hour ago
    This is a frontier level model and is at worst 1 month behind Anthropic and OpenAI.
    • Imustaskforhelp 43 minutes ago
      Which is also gonna be open weights on 4 Nov.

      When the frontier is pacing itself in its speed in terms of adding new capabilities (notice how fast opus 5.5 got released after Astra), then that also means that the open weights models which were just behind are accelerating in their speed just as much as well.

      Good news for us because the models which used to feel 6 months behind now feel like they are lesser.

      Double threat to Anthropic and OAI because if open weights models become good enough at the current level of Sota while being cheaper (which time will tell if this model fits the bill or not), then people will use those models instead of OAI/Anthropic provided it is "good enough"

      Though it has to be said that only real world use case can be trusted but I remain optimistic and hope that this turns out to be good in real world use cases as well.

      But in my opinion, all of this is really good for us end users!

  • sergiotapia 32 minutes ago
    What is the best subscription to use with Kimi to use for software engineering work? And how is usage? I remember when K3 came out it burned through usage at an insane rate. Is this still the case with Kimi K3.1 Pro?
  • chrsw 59 minutes ago
    So, the US economy spends trillions of dollars to be at the "frontier" and China puts out a model that basically does the same thing, for free, and for a tiny fraction of the development cost. How is this sustainable?
    • SXX 53 minutes ago
      It's not like US companies spend trillions on training itself.

      Mostly it's datacenter build out and circular financing magic when the same dollars being commited multiple times by multiple companies passing hot potato to each other. They basically commit capacities 2-3 years ahead.

    • hgoel 29 minutes ago
      It's 'sustainable' because there's enough regulatory risk to using Chinese models that many will avoid them, and a 3T parameter model is still a bit beyond even many enthusiasts for running locally.
    • MangoCoffee 17 minutes ago
      its hyperscalers and neoclouds data center build out that ate those trillions.

      a lot of those money is the commitment from US AI labs that's not yet spend until the data center is roll out.

      you are conflating.

    • phoghed 46 minutes ago
      There would be no Chinese model without US models to distill though. So, in a way, the Chinese models also cost a trillion dollars, they just don’t cost China that much.
  • AmazingTurtle 21 minutes ago
    whats the decode tok/s speed?
  • cardboard9926 35 minutes ago
    55 on AAI, really awesome
  • SomeonesAccount 1 hour ago
    No AA scores yet.
  • I_am_tiberius 58 minutes ago
    That's incredible
  • dcchambers 40 minutes ago
    Wow.
  • scotty79 42 minutes ago
    > Kimi K3.1 Pro is a post-trained version of Kimi K3, with substantially larger post-training compute.

    It's very nice that we entered a time where models are large enough and we can push the frontier just by training them longer.

    When the next generation of gardware comes the ones on the smaller size will be running on a computer that might cost as little as a good car.

    So after a home and a car, next major family purchase might be personal AI. And when the robots get good, pehraps in a decade, a fourth major purchase might pop up that will pair nicely with the third one.

    Why would a family need an AI? Maybe it's the same kind of question as why would it need a personal computer.

  • kingjimmy 48 minutes ago
    friday launch is bold
    • Lucasoato 41 minutes ago
      Never deploy to prod on Friday.
  • shaohua 1 hour ago
    "We Must Pace the Frontier"?
    • redox99 1 hour ago
      This probably doesn't move the frontier, it just sits at the current frontier (opus 5.5).

      Chinese models never agreed to the pacing anyway lol.

      • Alwayshasbeeb 1 hour ago
        Maybe not the raw intelligence/bench frontier but probably the cost per intelligence frontier.
        • redox99 1 hour ago
          Not for sub prices (Claude plan is way cheaper than Kimi API prices)
    • enjoyyourlife 1 hour ago
      "We must start a cartel with Google, Meta, and OpenAI"
  • LZ_Khan 54 minutes ago
    woah
  • dude250711 53 minutes ago
    What is the primary distillation source?
  • Super3000 1 hour ago
    I'll wait for the pelican benchmark.