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Claude 2.1 vs Mistral Medium 3.5

Anthropic Claude 2.1 vs Mistral Mistral Medium 3.5 — side-by-side specs.

Anthropic
Claude 2.1
Mistral
Mistral Medium 3.5
Overview
CompanyAnthropicMistral
Release dateNov 21 2023Apr 30 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 2.1 shipped 891 days before Mistral Medium 3.5

Which is better: Claude 2.1 or Mistral Medium 3.5?

Claude 2.1 and Mistral Medium 3.5 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 2.1 shipped 891 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 2.1 released?
Claude 2.1 was released by Anthropic on Nov 21 2023.
When was Mistral Medium 3.5 released?
Mistral Medium 3.5 was released by Mistral on Apr 30 2026.

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