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Claude Sonnet 4.6 vs Codestral 22B

2 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.6
Mistral
Codestral 22B
Overview
CompanyAnthropicMistral
Release dateFeb 17 2026May 29 2024
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
89.9%
Software engineering
SWE-Bench Verified
79.6%
Multimodal understanding
MMMU
Timeline
Release gapCodestral 22B shipped 629 days before Claude Sonnet 4.6

Which is better: Claude Sonnet 4.6 or Codestral 22B?

Claude Sonnet 4.6 leads Codestral 22B on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Codestral 22B shipped 629 days before Claude Sonnet 4.6, 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 Claude Sonnet 4.6 released?
Claude Sonnet 4.6 was released by Anthropic on Feb 17 2026.
When was Codestral 22B released?
Codestral 22B was released by Mistral on May 29 2024.

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