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![Kimi_Moonshot Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1863959670169501696.png) Kimi.ai [@Kimi_Moonshot](/creator/twitter/Kimi_Moonshot) on x 44.9K followers
Created: 2025-07-13 02:38:50 UTC

Super excited to see Kimi K2 land on Perplexity.

If you're fine-tuning, quick reminder: using the Muon optimizer during both fine-tuning and RL phases gives the best results (details are in our Moonlight paper).


XXXXXXX engagements

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**Related Topics**
[k2](/topic/k2)

[Post Link](https://x.com/Kimi_Moonshot/status/1944224975428497549)