Moonshot AI

Kimi K3.1 Pro

Oct 23, 2026ReasoningClosed weightsModels.dev

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Intelligence

55.1

#5 of 752Rank 5 of 752 measured models

Output speed

77.1 t/s

#262 of 412Rank 262 of 412 measured models

Price/1M

$4

#549 of 681Rank 549 of 681 measured models

Context window

1M

#89 of 1258Rank 89 of 1258 measured models

Cost per task

$2.11

#173 of 201Rank 173 of 201 measured models

Kimi K3.1 Pro scores 55.1 on the Artificial Analysis Intelligence Index, ranking 5th of 752 measured models. The closest models on this index are Claude Sonnet 5.5 (Default Fallback) (56.0), Muse Wonder Full (Max) (55.8), and Claude Fable 5.1 (Default Fallback) (53.4). At $4 per million tokens (3:1 input/output blended price), it is cheaper than Claude Fable 5.1 (Default Fallback) ($20), priced close to Claude Sonnet 5.5 (Default Fallback) ($4). With an output speed of 77.1 t/s, it is faster than Claude Fable 5.1 (Default Fallback) (68.4 t/s), slower than Claude Sonnet 5.5 (Default Fallback) (132 t/s).