Kimi Linear: An Expressive, Efficient Attention Architecture (2025)

248 points - today at 10:52 AM

Source

Comments

pooyamo today at 3:02 PM
Does any expert in the field know whether it is really the case that this intelligence we are seeing with frontier models is an "emerging" phenomena, only coming up when the architecture is scaled?

Like isn't it weird that the 1 million parameter model with the same architecture can't solve basic puzzles but suddenly the 1 trillion parameter can conjure up counter-examples for the Jacobian conjecture?

It's unintuitive since, to the best of my knowledge, one of the basic tenants of algorithm development was that you can't just brute-force your way towards a solution for some complex problems, e.g. naive sorting algorithms suddenly won't beat quicksort if you put more processing to them, but in the modern LLM scene it seems people are in a race to scaling up, experimenting empirically and hoping the same algorithm/architecture comes to a solution.

senko today at 2:25 PM
Old but relevant: if you read the recently-released Kimi K3 paper[0], you'll see that it's heavily based on Kimi Linear discussed here, scaling it up and adding a bunch more things (like native vision and RL improvements).

[0] https://arxiv.org/abs/2607.24653

bratao today at 2:44 PM
I started creating internal models using it, then the Gated Deltanet 2 came out( https://arxiv.org/abs/2605.22791), and it seems like an evolution of it in expressiveness. And in our tests it is really better than.
oakpond today at 3:06 PM
>To support further research, we open-source the KDA kernel and vLLM implementations, and release the pre-trained and instruction-tuned model checkpoints.

This is just awesome.

delichon today at 2:24 PM
If you want to believe that the success of Kimi is about distillation attacks, ignore this.
imrozim today at 3:17 PM
Any one knows how this holds up on long context retrieval (needle in haystack , ruler) vs same size full attention model? efficiency gains look great but that usually where linear attention hybrids fall apart.
Topology1 today at 2:10 PM
Another banger from Zhang et. al
jasonjmcghee today at 1:03 PM
(2025)

As it's 9 months old and they just had a major model release