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Mistral Small 3.1 vs o4-mini

Mistral Mistral Small 3.1 vs OpenAI o4-mini — side-by-side specs.

Mistral
Mistral Small 3.1
OpenAI
o4-mini
Overview
CompanyMistralOpenAI
Release dateMar 17 2025Apr 16 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapMistral Small 3.1 shipped 30 days before o4-mini

Which is better: Mistral Small 3.1 or o4-mini?

Mistral Small 3.1 and o4-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 3.1 shipped 30 days before o4-mini, so benchmark comparisons should account for the intervening progress.

Mistral Small 3.1 is an open-source / open-weight model; o4-mini is proprietary.

Direct benchmark comparisons are unavailable — Mistral Small 3.1 and o4-mini don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Mistral Small 3.1 released?
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
When was o4-mini released?
o4-mini was released by OpenAI on Apr 16 2025.
Is Mistral Small 3.1 or o4-mini open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. o4-mini is a proprietary model released by OpenAI.

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