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Claude Opus 4.1 vs Magistral Small

2 vs 0 benchmarks won

Anthropic
Claude Opus 4.1
Mistral
Magistral Small
Overview
CompanyAnthropicMistral
Release dateAug 5 2025Jun 10 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
80.9%
Software engineering
SWE-Bench Verified
74.5%
Multimodal understanding
MMMU
Timeline
Release gapMagistral Small shipped 56 days before Claude Opus 4.1

Which is better: Claude Opus 4.1 or Magistral Small?

Claude Opus 4.1 leads Magistral Small on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Magistral Small shipped 56 days before Claude Opus 4.1, 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 4.1 released?
Claude Opus 4.1 was released by Anthropic on Aug 5 2025.
When was Magistral Small released?
Magistral Small was released by Mistral on Jun 10 2025.

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