月之暗面开源 Kimi K3.1 Pro 权重，登顶 Agent Arena 开源模型榜
Exciting news: @Kimi_Moonshot has released the open weights for Kimi K3.1 Pro, now #1 among open models in Agent Arena!
月之暗面发布 Kimi K3.1 Pro 的模型权重，该模型在 Agent Arena 开源模型中排名第 1、总榜第 13。Arena 基于 17.5K+ 真实长程智能体会话统计，Kimi K3.1 Pro（Max）净提升 +5.1%，在 Work、Code、Chat 三个类别中均为开源第一，较 Kimi K3（Max）提升 4.2 个百分点。分项上它在 Bash Reliability（+7.9%）、Praise vs Complaint（+7.7%）、Steerability（+6.5%）三项居开源第一，Confirmed Success 为开源第 4（+3.9%）。
查看原帖发布 Kimi K3.1 Pro 的模型权重：https://t.co/tJXcYUeSCj 我们将继续推进开放智能。https://t.co/BbWCJUYYSQ
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Releasing the model weights of Kimi K3.1 Pro: https://t.co/tJXcYUeSCj We'll keep advancing open intelligence. https://t.co/BbWCJUYYSQ
正文
Exciting news: @Kimi_Moonshot has released the open weights for Kimi K3.1 Pro, now #1 among open models in Agent Arena!
Across 17.5K+ real-world, long-horizon agentic sessions from our global community of users, Kimi K3.1 Pro (Max) delivers +5.1% net improvement, ranking #1 open and #13 overall.
It ranks #1 among open models in all three categories: Work, Code, and Chat.
This is a +4.2 percentage point improvement over Kimi K3 (Max), with +0.9% (#6 open). It also improved across all signals. Among open models, it ranks: - #1 in Bash Reliability (successful shell commands) with +7.9%: (up from K3 at #13 with −4.5%). - #1 in Praise vs Complaint (sentiment in user reactions) with +7.7%: (up from K3 at #6 with +1.3%). - #1 in Steerability (responding to user corrections) with +6.5%: (up from K3 at #5 with +0.4%). - #4 in Confirmed Success (explicit “yes, that worked” from users) with +3.9%: (from K3 at #5 with +3.8%).
Congrats to @Kimi_Moonshot on this contribution to the open ecosystem!