AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

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Claude Opus 4.6 vs Codestral 22B

2 vs 0 benchmarks won

Anthropic
Claude Opus 4.6
Mistral
Codestral 22B
Overview
CompanyAnthropicMistral
Release dateFeb 5 2026May 29 2024
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
91.3%
Software engineering
SWE-Bench Verified
80.8%
Multimodal understanding
MMMU
Timeline
Release gapCodestral 22B shipped 617 days before Claude Opus 4.6

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

Claude Opus 4.6 leads Codestral 22B on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Codestral 22B shipped 617 days before Claude Opus 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 Opus 4.6 released?
Claude Opus 4.6 was released by Anthropic on Feb 5 2026.
When was Codestral 22B released?
Codestral 22B was released by Mistral on May 29 2024.

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