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Moonshot · model passport

Kimi K3.1 Pro

kimi-k3-1-pro
  • Cloud only
  • Proprietary licence
  • 1,048,576 context
  • Released 2026-10-23(OpenRouter model id)
2/27axes covered
Best percentile
94.7WebDev Arena
Cohort standing
64.6median 57.4

Thin coverage — read with caution

This model appears on only 2 of 27 benchmark axes considered. The overall standing has been shrunk toward the neutral 50 to reflect the small sample, and no weaknesses have been claimed — a low percentile on 2 axes is a coverage artifact, not a measured weakness.

What the data says

Benchmarked on 2 of 27 tracked axes. Every figure below is the model's own published result on that board.

On only 2 board(s), a ranked list of strengths would be false authority — the per-axis figures are shown below instead, without a verdict.

Uneven: 16.5 percentile points between its best and worst axis — 94.7 pct on WebDev Arena versus 78.2 pct on Agent Arena.

  • WebDev Arena94.7 pct1,695Verify →
  • Agent Arena78.2 pct0.047Verify →
  • OverallNot benchmarked
  • Vision ArenaNot benchmarked
  • Factuality ArenaNot benchmarked
  • Search ArenaNot benchmarked
  • Document ArenaNot benchmarked
  • GPQA DiamondNot benchmarked
  • AIME (math)Not benchmarked
  • FrontierMathNot benchmarked
  • SimpleQA VerifiedNot benchmarked
  • ARC-AGI-2Not benchmarked
  • Humanity's Last ExamNot benchmarked
  • SimpleBenchNot benchmarked
  • LiveBenchNot benchmarked
  • BFCL v4 (function calling)Not benchmarked
  • SWE-bench Verified (live board)Not benchmarked
  • Terminal-Bench 4.0Not benchmarked
  • MMLU-Pro (Artificial Analysis)Not benchmarked
  • LiveCodeBench (Artificial Analysis)Not benchmarked
  • IFBench (Artificial Analysis)Not benchmarked
  • HHEM Hallucination (Vectara)Not benchmarked
  • SWE-bench VerifiedNot benchmarked
  • Terminal-BenchNot benchmarked
  • CodingNot benchmarked
  • Instruction followingNot benchmarked
  • Hard promptsNot benchmarked

Percentiles are the model's standing within each board's own population. Axes marked "not benchmarked" have no published result for this model — that is an absence of data, not a low score.

How to run it

Use it hosted

ProviderMoonshot AI
Context length1,048,576 tokens
Max output943,718 tokens
Acceptstext, image, video
Input price$2 per 1M tokens
Cached input price$0.20 per 1M tokens
Output price$10 per 1M tokens

API parameters this endpoint supports

Frequency penaltyInclude reasoningLogprobsMax tokensPresence penaltyReasoningReasoning effortResponse formatStop sequencesStructured outputsTool choiceTool callingTop logprobs

Official model notes →

Context, limits and prices come from the last catalogue sync; the API id, the request and the link come from the provider's own documentation. Any field we haven't synced is left out entirely rather than guessed.

  • The Kimi K3.1 Pro (Max) from moonshot has a composite score of 86.5, with 64.6 after shrinking, covering 2 out of 27 axes and having thin coverage.

    standingVerify →
  • In the 180-day cohort of 217 models, Kimi K3.1 Pro (Max) from moonshot achieved a standing of 64.6, which is above the cohort median standing of 57.4.

Every claim is a computed fact from the current board data, phrased by a low-temperature model call and rejected by a validation gate if any number is not in the source row. How the leaderboards work →