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Claude Sonnet 4.6 vs Mistral Medium 3.5

2 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.6
Mistral
Mistral Medium 3.5
Overview
CompanyAnthropicMistral
Release dateFeb 17 2026Apr 30 2026
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 gapClaude Sonnet 4.6 shipped 72 days before Mistral Medium 3.5

Which is better: Claude Sonnet 4.6 or Mistral Medium 3.5?

Claude Sonnet 4.6 leads Mistral Medium 3.5 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Sonnet 4.6 shipped 72 days before Mistral Medium 3.5, 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 Mistral Medium 3.5 released?
Mistral Medium 3.5 was released by Mistral on Apr 30 2026.

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