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Mistral Medium 3 vs o3-pro

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

Mistral
Mistral Medium 3
OpenAI
o3-pro
Overview
CompanyMistralOpenAI
Release dateMay 7 2025Jun 10 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapMistral Medium 3 shipped 34 days before o3-pro

Which is better: Mistral Medium 3 or o3-pro?

Mistral Medium 3 and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Medium 3 shipped 34 days before o3-pro, 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 — Mistral Medium 3 and o3-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Mistral Medium 3 released?
Mistral Medium 3 was released by Mistral on May 7 2025.
When was o3-pro released?
o3-pro was released by OpenAI on Jun 10 2025.

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