Kimi K3.1 Pro Scores 64% on the Artificial Analysis Cyber Index

Moonshot AI’s Kimi K3.1 Pro scored 64% on the Artificial Analysis Cyber Index, the highest result among publicly available models, as the company detailed steps to reduce cyber misuse risks. Moonshot removed cyber-related data from the model’s mid-training corpus and cyber-related tasks from the mix used in its reinforcement-learning environment. The changes were intended to reduce misuse risk ahead of a planned release of the model’s full weights by Nov. 4. On the Artificial Analysis Cyber Index, K3.1 Pro’s 64% result was 23 percentage points above K3’s score. It also topped DeepSeek V4.1 Flash 1017, which scored 57%.

Source: TokenPost