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Mistral Medium 3 vs o3-mini-high

Mistral Mistral Medium 3 vs OpenAI o3-mini-high — side-by-side specs.

Mistral
Mistral Medium 3
OpenAI
o3-mini-high
Overview
CompanyMistralOpenAI
Release dateMay 7 2025Jan 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 gapo3-mini-high shipped 96 days before Mistral Medium 3

Which is better: Mistral Medium 3 or o3-mini-high?

Mistral Medium 3 and o3-mini-high do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o3-mini-high shipped 96 days before Mistral Medium 3, 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 Medium 3 released?
Mistral Medium 3 was released by Mistral on May 7 2025.
When was o3-mini-high released?
o3-mini-high was released by OpenAI on Jan 31 2025.

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