Kimi K2 0711

Open weights

Moonshot AI's open trillion-parameter MoE - 1T total / 32B active, trained with the MuonClip optimizer on 15.5T tokens.

Publisher: Moonshot AI
Family: Kimi K2
Params: 1T total / 32B active
Context: 131K
Input
Output
Providers: moonshot together fireworks self-host
License: Modified MIT
Released: Jul 2025
Canonical: github.com/MoonshotAI/Kimi-K2

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Notes

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Attribution

Benchmark scores: Aider AAVaultprime-hub Vals AI EQ-Bench

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Context

131K

Input

$0.57

/1M tok

Output

$2.30

/1M tok

Blended

$1

#353/ 461/1M · 3:1

Speed

0

#115/ 461tok/s

Price & speed via Artificial Analysis · ranked across tracked models

Reported on 20 evals across 10 domains - best 97.1% on MATH-500 · #16 of 190

Reported eval scores

20

Backend Bench7.4

AIME 2024: Problems from the American Invitational Mathematics Examination69.3

Humanity's Last Exam (HLE)7.4

GPQA Diamond76.6

LiveCodeBench55.6

Aider Polyglot Benchmark59.1

EQ-Bench Creative Writing v31662.7

EQ-Bench Longform Creative Writing68.1

τ²-bench (Tau²-bench)61.1

AIME 2025: Problems from the American Invitational Mathematics Examination57

Terminal-Bench (Hard)15.9