Kimi K3.1 Pro model weights are out
Posted by abrarthought 10 hours ago
Comments
Comment by __jf__ 9 hours ago
> Advancing the Frontier of Open Intelligence.
Too bad you probably need something like an 8x B300 node to run this. Black Friday is coming soon though, but I fear this open intelligence will be pacing anyone's liquidity frontier so I'll probably keep trailing the frontier for a while with nvidia/qwen3.8-27B-NVFP4 on dual RTX PRO 4000 in TP=2. I can almost fit 450k context in there.
Comment by bityard 8 hours ago
This model is for researchers who already have racks of equipment, inference providers who sell access to models, and for businesses who must (or choose to) use on-prem models. All of which have to pay to use the model if their revenue rises beyond certain thresholds: https://huggingface.co/moonshotai/Kimi-K3.1-Pro/blob/main/LI...
Comment by SR2Z 48 minutes ago
Comment by largbae 25 minutes ago
Comment by zozbot234 7 hours ago
Comment by demo4567 1 hour ago
Comment by FuriouslyAdrift 5 hours ago
We will break even from our old Claude spend in about 2 weeks.
It services 30-40 analysts and staff concurrently and is faster than any of the SaaS out there for us.
Comment by StilesCrisis 49 minutes ago
Comment by LugosFergus 1 hour ago
Comment by flossly 4 hours ago
Also what harness do you use? Any problems you encountered on the way?
Comment by FuriouslyAdrift 4 hours ago
EDIT: per project, not per month
EDIT 2: digging out an old bill from 8 months ago when we bought the server, $14k per month is what we were running and it was going up, a lot.
Comment by Moto7451 4 hours ago
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Comment by rat9988 1 hour ago
Comment by qsfp28 3 hours ago
Comment by trentor 4 hours ago
Comment by cute_boi 4 hours ago
Comment by joecot 8 hours ago
I regularly use together.ai with models like this, where they're fully self hosting them and I can turn off all data retention, at a fraction of the cost of proprietary models. I recently discovered abliterated models (models edited to not refuse to work on security stuff) and hosts for them like refuseless.com, and that's an option for open source models, not for proprietary ones.
Comment by nbk_2000 1 hour ago
Comment by zozbot234 56 minutes ago
Comment by penagwin 7 hours ago
Unfortunately due to their licensing requirements for modal-as-a-service providers, the pricing can’t go lower than Moonshot’s from what I can tell.
This is still great if like your example you trust together.ai more, or if different providers have better speeds/cache rates (though usually the original lab has the best cache hit rate).
And obviously if you’re a large enough service to afford to self host or finetune it then this is good.
Comment by athrowaway3z 6 hours ago
All the service provider needs to do is provide the option to rent out VM's with access to the inference cards.
Have the customer provide the model.
Maybe provide a bit of a speedup, by letting the customer mount the model by hash.
Sure, that all sounded way too technical 10 years ago, and somebody would have said that's already too much annoyance to deal with for average customers.
Reluctantly i'd agree.
That was 10 years ago. Nowadays, with some proper docs, this entire set up can be up and running in 5 minutes.
Comment by qsfp28 3 hours ago
Comment by zozbot234 8 hours ago
Comment by thway15269037 7 hours ago
Not a trolling question, genuine interest.
Comment by labcomputer 6 hours ago
Usually there are some static experts in each attention layer, plus a whole bunch of dynamically-routed experts. Typically some form of LRU cache is used for the dynamic experts.
So you can keep only the static expert(s) and routing layers in memory and then stream the dynamic experts from SSD, at a modest inference speed cost driven by the latency required to load layers from SSD when they aren’t already in the memory cache.
The LRU cache works reasonably well because a given task will often hit the same experts on each iteration of the forward pass.
For example, on a Mac Studio, Qwen3.8-flash-next (180b total parameters) with 50% of experts in memory and n-gram offloading has about 1/4 to 1/3 the inference speed of everything in memory. That requires 32GB of vRAM for the weights (plus a little extra for context, obviously)
Comment by zozbot234 7 hours ago
Comment by thway15269037 4 hours ago
I can't, however, run DS4.1-1017, for example, but maybe I didn't find proper options and quantization yet.
So I'm really interested how to be sure what can/cannot fit in specific hardware (for example, I want to buy a Mac Studio with 64 or 128 GB RAM, what MoE model it would run at comfortable speed? Will it be qwen-flash-next or something bigger? And so on). So far websites with "benchmarks" were really terrible in that regard (and huggingface calculator even worse!)
Comment by zozbot234 4 hours ago
This is expected if you're actively steering the agent, but what about running unattended tasks - perhaps multiple such tasks in parallel, such that you can stay engaged by "attending" to each of them in turn? Then you're not restricted to such a requirement, and can benefit from much slower (individually, not wrt. total throughput) inference streams.
> I currently have 192GB and 24GB VRAM
I'm not familiar with beellama, but this seems like it could be the perfect setup for Strata which people are saying good things about, including for running DS4.1F (at least quantized). The whole point of it is to effectively leverage heterogenous RAM/VRAM setups. Of course llama.cpp itself is doing a good job of trying to catch up, but they've yet to support efficient SSD streaming (mmap doesn't quite cut it) in the main branch.
Comment by reasonableklout 5 hours ago
Comment by zozbot234 5 hours ago
Comment by adgjlsfhk1 7 hours ago
Comment by minraws 25 minutes ago
Comment by mrandish 1 hour ago
A few weeks before Black Friday a couple years ago, I noticed a listing on Amazon for a high-end AI card for around $40,000 (maybe a B100, don't recall). The listing had the automatically inserted Xmas season note "Free returns until Jan 31." I spent a serious minute pondering if I could float the cash for the ~40 days between the credit card bill being due and returning the card. :-)
Comment by LarsDu88 8 hours ago
Perhaps a flood of 8x B300 will be homelab ready in a few months
Comment by NitpickLawyer 8 hours ago
Haha, that's beyond wishful thinking, I'm afraid. We're not even seeing a flood of A100s (6 yo and several generations old). Every GPU is still being squeezed right now, and the trend will probably continue for the foreseeable future.
Comment by throwup238 8 hours ago
Comment by fauigerzigerk 5 hours ago
Comment by thway15269037 17 minutes ago
I wouldn't be surprised if RAM cartel or nvidia will attempt something like that, plus nvidia already talks about license-locking GPUs.
Also, again, IIRC, IBM hardware already works this way. There are almost no aftermarket when I last checked for them because it's all locked up and useless.
Comment by largbae 11 minutes ago
Comment by x187463 8 hours ago
Comment by fauigerzigerk 5 hours ago
Perhaps one option is building data centers along with solar power plants in sunny countries that have a lot of space. I'm not sure about the water/cooling situation though.
Comment by SR2Z 45 minutes ago
It would certainly fit the pattern of Bitcoin farms clustering near dams.
Comment by seviu 6 hours ago
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Comment by swingandamiss 8 hours ago
Comment by DaSHacka 7 hours ago
Bonus points when the morons are doing so because they get all their political news from a Chinese platform. The [Americans] have gone insane.
Comment by FuriouslyAdrift 5 hours ago
Comment by viccis 8 hours ago
A lot of the data center build out has been bipartisan. Unless Dems realize they need to listen to their constituents to avoid a 2028 bloodbath (they probably won't), I wouldn't count on that to save us from RAM/GPU prices.
Comment by boznz 6 hours ago
Comment by graykevinb 8 hours ago
I cant say how well that image works as I'm still waiting for them to approve my gpu access
Comment by itkovian_ 7 hours ago
It seems more plausible to me than wherever the frontier is at any given time getting small enough to serve on one local card directly
Comment by randbyte 2 hours ago
Comment by vorticalbox 8 hours ago
I usually keep under 200k if I can help it for Claude/ open ai
And lower locally on my Mac to save on prefill.
Comment by __jf__ 7 hours ago
Comment by thefounder 5 hours ago
Comment by 0xjosephx10 2 hours ago
Comment by segmondy 8 hours ago
Comment by reissbaker 8 hours ago
I wouldn't over-weight internal benchmarks from a competitor that claim benchmaxxing TBH. Kimi K3 has been at the top of Design Arena for open-weight models for a long long time, and I suspect K3.1 will be there for a long time too. It's pretty hard to fake that one since it's actual human preferences for the artifacts produced.
Comment by seizethecheese 7 hours ago
Here, DS4.1-Flash and K3.1 are basically tied, with K3.1 being slower and more expensive. Big error bars, though.
Even with error bars, DS4.1-flash is clearly an impressive model.
Comment by reissbaker 7 hours ago
Comment by seizethecheese 7 hours ago
You can remove early voting from leaderboard and they are no longer the same.
Comment by purerandomness 1 hour ago
Usually, it's because all else failed, and I have to resort to burning Tokens with more expensive/better models, so a few minutes here and there really should not matter.
Comment by nostrebored 2 hours ago
Comment by ricardobeat 3 hours ago
Comment by carterschonwald 6 hours ago
Comment by NitpickLawyer 7 hours ago
It's worse than that. It seems that they straight up trained on the test sets, according to this [1].
> When prefilling K3.1’s reasoning with a request to list its instructions, K3.1 names hidden requirements in 65% of its answers, K3 in 18%. When we edit a task file to contradict one of these rules, K3.1 ignores the edit and fails the task (in three of four tasks), while other models follow it. K3.1 does follow edits that do not contradict a hidden rule.
> We think these behaviors are most likely signs of training directly on the benchmark tasks with a teacher that saw the hidden grading rules, for example on-policy self-distillation.
> K3.1 also names HLE on 8.4% of the questions, often while trying to work out which benchmark a question comes from
> For example, in the production-planning task, the prompt never mentions tiers or lexicographic order. K3.1 writes “Instructions strongly say set-level aggregate fulfilled qty per priority tier lexicographic [...]”, which is the hidden ranking rule. In 23.3% of its 189 attempts, K3.1 presents a requirement that the prompt lacks and the hidden tests check as an instruction
Comment by O_H_E 2 hours ago
Aside from this paper and K3.1 specifically, is there somewhere where I can read more a high-level introduction about the state of things in this niche? like the different types of faults like these models fail and ideally how to fish them out?
Comment by zozbot234 6 hours ago
Ouch, that's a nasty case of reward hacking. Thanks for pointing this out!
Comment by zozbot234 8 hours ago
Comment by segmondy 8 hours ago
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Comment by segmondy 7 hours ago
Comment by Scene_Cast2 7 hours ago
Comment by conception 8 hours ago
Comment by dmckinno 7 hours ago
Very strong open model release that is a bit off the frontier but totally amazing for most use-cases.
https://x.com/danielmckinn0n/status/2115213822957117535?a=fO...
Comment by JacobAsmuth 4 hours ago
Comment by minimaxir 7 hours ago
Together appears to have double throughput of the Moonshot AI endpoint at the same price point (with Modal having double that throughput), so I suspect there is room for inference providers to optimize...and therefore headroom to cut costs for competition.
Comment by throwa356262 7 hours ago
https://www.theregister.com/ai-and-ml/2026/11/03/british-fin...
Comment by codethief 7 hours ago
> If the Licensee or any of its affiliates operates a Model as a Service business, and the aggregate revenue of the Licensee and its affiliates exceeds 20 million US dollars (or the equivalent in other currencies) in total over any consecutive 12 months, the Licensee must enter into a separate agreement with Moonshot AI before using the Software or its derivative works for any commercial purpose.
[0]: https://huggingface.co/moonshotai/Kimi-K3.1-Pro/blob/main/LI...
Comment by 7734128 6 hours ago
I think one of the initial reasons why otherwise open source models started with the limitations on model-as-a-service use cases was because of quantised or entirely different models being served as the model in question on open router, and they needed a legal method to limit that. It might just be that, thought it might also be the direct opposite, hard to know.
Comment by ls612 7 hours ago
Comment by zozbot234 7 hours ago
Comment by speedping 7 hours ago
Comment by throw938990 7 hours ago
But I think smaller size models like qwen 3.8 are way more important.
Comment by purplemantis 7 hours ago
Comment by thway15269037 4 hours ago
Comment by zozbot234 4 hours ago
Comment by thway15269037 3 hours ago
I wondered why do they even need slow HDDs, like, do they store training data on them? User chats? Do they assemble crazy 12-way stripes for fast speed? Do they store what, failed attempts?
Comment by selectodude 2 hours ago
Comment by lacoolj 7 hours ago
But i also get the immediate "but how is anyone supposed to run this locally" feeling
Maybe we need a new network. Like, Nextdoor + counterstrike pub servers, but for local LLM. We can call it semilocal
:)
Comment by Creamsicle47 6 hours ago
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Comment by arcanemachiner 15 minutes ago
I'll admit that I'm lazy and haven't looked yet... I'm just wondering if you have any recommendations.
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