Moonshot AI's Kimi K3.1 Pro closes in on Anthropic's Claude Opus 5.5

moonshot ai has released kimi k3.1 pro, which has jumped to fourth place on the artificial analysis intelligence index with 55 points, just behind claude opus 5.5 with 58 points. kimi k3.1 pro shows major gains in agentic tasks, coding, and 3d modeling, with an 11-point jump over its predecessor kimi k3. the model's parameter count remains at 2.8 trillion, but api prices have dropped by 33 percent. moonshot plans to release the model weights by november 4, 2026.