Kimi K3.1 Pro 发布，Artificial Analysis 智能指数 55 分位列第四
Kimi K3.1 Pro launches at 4th on the Artificial Analysis Intelligence Index scoring 55, making large gains in agentic performance; it will be the leading open-w
月之暗面发布推理模型 Kimi K3.1 Pro，在 Artificial Analysis 智能指数上得分 55，位列第四，比 Kimi K3 的 44 分提升 11 分，仅次于 Claude Opus 5.5（58）、Claude Sonnet 5.5（56）和 Muse Wonder Full（56）。其智能体能力提升明显，GDPval-AA 以 1846 Elo 排第三，Terminal-Bench 4.0 得分 67%（Kimi K3 为 13%），AutomationBench-AA 从 58% 升至 73%。模型上下文窗口 1M tokens，总参数 2.8T、激活参数 104B，支持文本和图像输入，定价为每 1M 输入/输出/缓存命中 token 2/10/0.20 美元，权重尚未发布。
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精选AI 评分 78
第三方评测机构给出 Kimi K3.1 Pro 与 Claude、Muse 等前沿模型的逐项对比，可据此判断开源权重模型的追赶幅度。
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Kimi K3.1 Pro launches at 4th on the Artificial Analysis Intelligence Index scoring 55, making large gains in agentic performance; it will be the leading open-weights model once its weights are published
@Kimi_Moonshot's new reasoning model gains 11 points over Kimi K3 (max, 44). It trails only Claude Opus 5.5 (max with fallback, 58), Claude Sonnet 5.5 (max with fallback, 56), and Muse Wonder Full (max, 56) on the Intelligence Index.
Once the weights for K3.1 Pro are released it will be the highest-scoring open weights model and the gap between the leading open weights and proprietary models on the Intelligence Index will narrow from 12 points to 3.
Key results: ➤ Large gains in agentic performance: Kimi K3.1 Pro scores 3rd on GDPval-AA with 1,846 Elo, up 312 Elo from Kimi K3, behind only Claude Opus 5.5 (1,866 Elo) and Muse Wonder Full (1,857 Elo). Kimi K3.1 Pro also achieves the highest score of any model on Terminal-Bench 4.0. K3.1 Pro scores 67%, up from 13% for Kimi K3 and ahead of Claude Sonnet 5.5 (64%). AutomationBench-AA, which tests agentic SaaS workflows, rises from 58% to 73%.
➤ Gains in other evals are more moderate: Humanity's Last Exam rises from 47% to 52%, CritPt from 23% to 25%, and SciCode from 59% to 61%. AA-Omniscience Index rises from 20 to 30, as the hallucination rate falls from 53% to 44% and accuracy rises from 48% to 51%.
➤ Cost per Task roughly equal to Kimi K3 at $1.98 per Task: K3.1 Pro uses 55K output tokens per Intelligence Index task, 14% more than Kimi K3 at 48K, while its first-party token prices are 33% lower.
Additional model details: ➤ Context window: 1M tokens. ➤ Size: 2.8T total, 104B active parameters ➤ Input modalities: Text and image ➤ Weights and license: Weights currently not published, Moonshot is expected to release the weights soon after launch ➤ Pricing: $2/$10/$0.20 per 1M input/output/cache hit tokens, 33% lower than Kimi K3 on all three rates.
Congratulations to the team at @Kimi_Moonshot on the release!