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Posted by Jowsey 18 hours ago

Kimi K3.1 Pro and K3.1 Pro Highspeed(www.kimi.ai)
https://www.kimi.com/code/docs/en/kimi-code/models.html

https://artificialanalysis.ai/models/kimi-k3-1-pro

https://www.modelcompare.ai/blog/china-open-source-ai

927 points | 550 commentspage 5
TuxSH 18 hours 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 17 hours 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.

2001zhaozhao 14 hours ago|||
I am glad that at least one Chinese company seems to be listening to AI cybersecurity concerns and did concrete steps that actually reduce the problem. This was probably at least somewhat costly to them in terms of general model capabilities as well. They'd probably have gotten slightly better coding capabilities if not for removing the cyber training data and tasks.
AspireOne 13 hours ago||
I am glad about it as well. Don't get me wrong, I love OSS, I love personally being able to get my hands on the frontier stuff and frontier cybersec capabilities, and I dislike a few entities having exclusivity on it. Everybody does. But that absolutely doesn't mean it's the correct approach. I think people are blinded a little bit by general principles and by personal feelings, rather than operating from a point of pragmatism, consequences, and the big picture.

Also, to note: I don't claim to have the answers either. I don't even hold a strong position on this issue yet. I'm just sharing some of my intuitions, and reacting to people who, as far as I'm concerned, are making this issue all too simple.

LinXitoW 12 hours ago||||
How does "the world" get ready, when these limits are so hard core that Opus regularly stops working when I'm just trying to find and fix security exploits in my apps?

Currently available, unhindered models can already find a bunch of exploits, not because they're smart, but because they're cheap and smart enough to just keep going for hours or days until it finds something.

The defenders, especially in the FOSS space, only have one big advantage: Unified scale. If defender A finds a vuln, then defender B doesn't need to find it again. Attackers generally act alone, so they need to do all the work themselves.

If we remove a bunch of defenders, the attackers are back at it again.

TuxSH 13 hours ago||||
Most low- and medium-handing fruit vulns can be found and exploited by GLM and some knowledge already.

Kneecapping cyber vulns only serve governments, Pandora's Box is already open for cyber-related stuff.

AspireOne 13 hours ago||
The Pandora box can expand even further, and it matters. If it didn't matter, like you seem to be suggesting, then by the same logic there isn't a reason to push for further open-source development.

> Kneecapping cyber vulns only serve governments.

Uhh, no? Kneecapping cyber vulns server most of us. There are negatives to kneecapping it, but let's not pretend like it's perfectly okay and safe for everybody in the world to have a magic box that can hack anything and cause havoc all over the world. The more powerful, cheap, and accessible this magic box is, the worse the consequences.

This is a hard problem and there's real tension - like you said, the playing field not being leveled is a problem (major companies / entities / govts having exclusivity on the best cyber abilities etc), but everybody having access to it is a problem as well.

So let's not pretend like this is a simple problem, and don't say that it only serves the govt. That's very silly.

jrflo 15 hours ago||||
Yes, thank you Moonshot for not throwing open Pandora's box and seeing what happens security wise.
0xbadcafebee 15 hours ago|||
> The world needs to get ready

How will it do that without a model that's good at security? You gonna have humans manually secure the millions of lines of new AI-generated code, in addition to the existing code? Suddenly people will start doing the job they haven't been doing up to now? Not only are we not capable of auditing all the code, it would take decades to finish, and new code will be coming out at the same time. We can't catch up by hand.

The only way to fight this fire is with fire. We need AI hacking tools to find our security holes quickly and patch them. Otherwise we're just churning out more insecure software, and the only people who can defend against it are the governments who don't want to patch the holes (because they want to be able to exploit them). Without open tools, we all lose.

AspireOne 13 hours ago||
I disagree with this completely.
CamperBob2 15 hours ago||
If I were them, I'd release the weights and claim I had nerfed them for safety, having done no such thing in reality.
rudolftheone 18 hours ago||
Hallu Bench Hard: K3 at 23.4%, K3.1 at 8.3% which is very nice improvement!
yipinwong 17 hours 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.

kristopolous 16 hours ago|
I've consistently heard the opposite from Chinese programmers. Maybe the performance is better in some tasks or maybe the sample size of San Francisco is just skewed.
rglover 16 hours ago||
Using it now via API (3.1 Pro on Open Router) in a HITL setup (Cline in VSCode).

Off-hand it's quite good. I've been using K3 for the past few months almost exclusively for coding work and have been stunned by how good it is. Excited to see how far 3.1 Pro can be pushed.

lucagiftzek 12 hours ago||
The china models are extremely interesting, first the new releases from deep seek, now this. The modern race to AI is better than it were the race to the moon.
a3nz3g 9 hours ago||
I feel like many models are overfitting. When it comes to software development, only Opus actually saves me time.

Sol requires some back-and-forth. Other models, like Muse Wonder and Argon, are a total waste of time. They require way too much effort to get things working.

Given the same prompt, Opus can work for hours to deliver a solid result, though it sometimes overengineers things. Sol takes about 80% as much time and delivers a slightly worse version.

Other models just tell me they're done after 20 minutes.

WTH? Am I using the model, or is the model using me?

bel8 4 hours ago|
Are you using same harness/agent on all of them? It makes a huge difference for long running tasks.
volf_ 18 hours ago||
That's quite an impressive jump
vikramkr 15 hours ago||
Is highspeed a different model like a flash model or is that just a api/platform feature thats a normal fast mode? I can't tell from the announcement but I might just be missing something obvious?
0xbadcafebee 15 hours ago|
Same model, faster inference
cesarvarela 18 hours 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 17 hours ago|
Astra is very strong.
cesarvarela 12 hours ago||
Yeah, but it's not good enough. Ask Opus and Astra to make a landing page about lemon pies or whatever. Opus will get you a better result almost every time.
Quitschquat 15 hours ago|
What are you using for testing vulnerabilities in your own code?

Claude gates on me like a stupid nanny with some cybersecurity bullshit (like bad actors haven't found a way around).

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