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Mixtral 8×22B vs Kimi K2 (0905)

0 vs 2 benchmarks won

Mistral
Mixtral 8×22B
Moonshot AI
Kimi K2 (0905)
Overview
CompanyMistralMoonshot AI
Release dateApr 10 2024Sep 5 2025
Model type
Open sourceYesYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
75.1%
Software engineering
SWE-Bench Verified
65.8%
Multimodal understanding
MMMU
Timeline
Release gapMixtral 8×22B shipped 513 days before Kimi K2 (0905)

Which is better: Mixtral 8×22B or Kimi K2 (0905)?

Kimi K2 (0905) leads Mixtral 8×22B on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Mixtral 8×22B shipped 513 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Mixtral 8×22B released?
Mixtral 8×22B was released by Mistral on Apr 10 2024.
When was Kimi K2 (0905) released?
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.

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