Kimi K3.1 Pro debuts 4th on AA Index at 55, open-closed gap shrinks to ~5 weeks
rbhar90 · x · 2026-10-24
Per Artificial Analysis, Kimi K3.1 Pro debuts 4th on the Intelligence Index at 55, gaining 11 points over Kimi K3 (max, 44) with large agentic improvements, trailing only Claude Opus 5.5 (58), Claude Sonnet 5.5 (56) and Muse Wonder Full (56). Ramez estimates it sits only 5 weeks behind the US frontier — the narrowest open/closed gap ever. Once weights are released it will be the top open-weights model, cutting the gap from 12 points to 3.
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