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Kimi K3 benchmarks, ranks and price

Where Artificial Analysis, LiveBench, LMArena and Berkeley BFCL place Kimi K3, what it costs through OpenRouter and Vercel AI Gateway, and the models either side of it on the consensus.

Updated Oct 1, 2026Full leaderboardSources and method

Read Oct 1, 2026

#4of 85

on the LLM leaderboard, with a consensus score of 80 across 3 leaderboards.

Source: Artificial Analysis, LiveBench, LMArena and Berkeley BFCL, combined by Rank.ai.

By leaderboard

Where each leaderboard places Kimi K3

Artificial Analysis

#4of 51

Score 43.6. Best run: moonshotai/kimi-k3.

Intelligence Index: a composite of reasoning, knowledge, maths and coding evaluations.

LiveBench

#6of 34

Score 78.5. Best run: Kimi K3.

Contamination-limited questions refreshed each release: reasoning, maths, coding, data analysis, language.

LMArena

#7of 79

Score 1486. Best run: kimi-k3.

Blind head-to-head human votes, style controlled.

Berkeley BFCL

Not measured by Berkeley BFCL.

Function calling and tool use, single turn to multi turn and web search.

Price and context

$2.71

OpenRouter: $0.28 in, $10 out. Vercel AI Gateway: $3.00 in, $15 out Context window 1.0M tokens. LiveBench cost per solved task $0.379.

Nearby

The models either side of Kimi K3

  1. #1Claude Fable 585
  2. #2Claude Opus 583
  3. #3GPT-5.6 Sol83
  4. #4Kimi K380
  5. #5GPT-5.580
  6. #6gemini-3-pro79
  7. #7Claude Opus 4.879

Questions about Kimi K3

How good is Kimi K3?
Kimi K3 ranks #4 of 85 models on the Rank.ai LLM leaderboard, with a consensus score of 80 out of 100 across 3 leaderboards.
Is Kimi K3 better than GPT-5.6 Sol?
Not on the consensus: GPT-5.6 Sol scores 83 to Kimi K3's 80. Compare them source by source below, since the leaderboards test different things.
Is Kimi K3 better than GPT-5.5?
On the consensus, yes: 80 to 80.
How much does Kimi K3 cost?
$0.28 per million input tokens and $10 per million output tokens on OpenRouter, the cheaper listing we read. Blended at three input tokens to one output, that is $2.71 per million.
Is Kimi K3 good for coding?
It scores 76.2 on the Artificial Analysis Coding Index, placing it #5 for coding among the models on this leaderboard.

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