Moonshot Releases Kimi K3 Open Weights
Model tops Agent Arena and open-weight leaderboards in multiple categories.
TLDR
Moonshot AI open-sourced the weights and technical report for Kimi K3. The model leads among open-weight entries in the Agent Arena by a wide margin over GLM-5.2 and claims the top position in Frontend Code and Text arenas as well. Multiple observers note the release includes native vision support along with production deployment guidance from the vLLM team. Early reactions highlight strong benchmark gains and unusually low inference cost relative to prior frontier-scale systems. The release is confirmed through official posts and independent leaderboard updates with no conflicting reports.
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Jamin Ball@jaminball- likes: 38
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EM Ethan Mollick@emollickBeen reading the weights of the most powerful open weights Ai model yet released. Page one starts strong: mostly negatives, a late run of zeros, and one unexpectedly large positive value. https://twitter.com/Kimi_Moonshot/status/2081760186235289764
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AR Arena.ai@arenaBig update: Among open-weight models, Kimi K3 (Max) is #1 in the Agent Arena with +9.75% net-improvement, surpassing GLM-5.2 (Max) at +7.12%, and landed the #1 spot across 5 signals (see below). Kimi K3 (Max) is also now #1 in open-weight in the Frontend Code (1682 pts) and…
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AA Artificial Analysis@ArtificialAnlysKimi K3 weights have been released! Kimi K3 is now the leading open weights model at 57 in the Artificial Analysis Intelligence Index Moonshot has released the weights of their 2.6T parameter model under their 'Kimi K3 License' which we have labelled ‘Commercial Use…
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CH Chubby♨️@kimmonismusIt’s absolutely crazy how good open source has become. Open models from China are overtaking models like Opus 4.8, which are barely two months old. https://twitter.com/artificialanlys/status/2081821449745236270
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PS Pranav Shyam@recurseparadoxit’s a great model sir https://twitter.com/0xgoodie/status/2081762881297842336
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