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Kimi K3 Architecture Overview and Notes

sebastianraschka.com

31–40 of 125 posts

Re: Kimi K3 Architecture Overview and Notes

#31

"Interestingly, Kimi K3 got rid of all RoPE layers and uses NoPE (No Positional Embeddings) everywhere instead." It just baffles me that this even works at all. Doesn't it just become a token soup? Is attention that precise that a second token can tell its the second token just because it learns to accumulate something in the embedding space without any sort of inductive bias?

At least the SSM layers should have relative PE built in via recurrence, in a hybrid attention model like this.

Re: Kimi K3 Architecture Overview and Notes

#36

"Interestingly, Kimi K3 got rid of all RoPE layers and uses NoPE (No Positional Embeddings) everywhere instead." It just baffles me that this even works at all. Doesn't it just become a token soup? Is attention that precise that a second token can tell its the second token just because it learns to accumulate something in the embedding space without any sort of inductive bias?

Causal masking allow model to learn implicit positional embeddings. The meme that a transformer block is permutation invariant is not true.

And adding to that, there is also the recurrent state in the Kimi Delta Attention. I wouldn't call it position information but more sth like "position sensitivity"

Re: Kimi K3 Architecture Overview and Notes

#38

So, unlike what leaders of western labs labs would like you to believe (that Kimi is just the result of distillation attacks), they are introducing new and novel approaches.

Even if they are distilling, I don't particularly care. Anthropic and others have been distilling copyrighted material by to build these models, largely without permission.

Re: Kimi K3 Architecture Overview and Notes

#40
Just tried K3 out for the first time today and it's a legitimate threat.

Temporarily (maybe permanently) using it as my daily driver but it's wild how comparable it is to Opus 4.7/4.8 (what's been my go to for a bit now—wrote a quick post on what I found today [1]).

[1] https://graybearding.bearblog.dev/kimi-k3-is-insane/

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