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Mistral Small vs o3-mini

Mistral Mistral Small vs OpenAI o3-mini — side-by-side specs.

Mistral
Mistral Small
OpenAI
o3-mini
Overview
CompanyMistralOpenAI
Release dateFeb 26 2024Jan 31 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMistral Small shipped 340 days before o3-mini

Which is better: Mistral Small or o3-mini?

Mistral Small and o3-mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mistral Small shipped 340 days before o3-mini, 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 Mistral Small released?
Mistral Small was released by Mistral on Feb 26 2024.
When was o3-mini released?
o3-mini was released by OpenAI on Jan 31 2025.

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