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Mistral Small 4 vs o1-pro

Mistral Mistral Small 4 vs OpenAI o1-pro — side-by-side specs.

Mistral
Mistral Small 4
OpenAI
o1-pro
Overview
CompanyMistralOpenAI
Release dateMar 16 2026Mar 19 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapo1-pro shipped 362 days before Mistral Small 4

Which is better: Mistral Small 4 or o1-pro?

Mistral Small 4 and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-pro shipped 362 days before Mistral Small 4, 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 Small 4 and o1-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Mistral Small 4 released?
Mistral Small 4 was released by Mistral on Mar 16 2026.
When was o1-pro released?
o1-pro was released by OpenAI on Mar 19 2025.

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