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Mistral Small 3.1 vs o1-preview

Mistral Mistral Small 3.1 vs OpenAI o1-preview — side-by-side specs.

Mistral
Mistral Small 3.1
OpenAI
o1-preview
Overview
CompanyMistralOpenAI
Release dateMar 17 2025Sep 12 2024
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapo1-preview shipped 186 days before Mistral Small 3.1

Which is better: Mistral Small 3.1 or o1-preview?

Mistral Small 3.1 and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-preview shipped 186 days before Mistral Small 3.1, so benchmark comparisons should account for the intervening progress.

Mistral Small 3.1 is an open-source / open-weight model; o1-preview is proprietary.

Direct benchmark comparisons are unavailable — Mistral Small 3.1 and o1-preview 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 o1-preview released?
o1-preview was released by OpenAI on Sep 12 2024.
Is Mistral Small 3.1 or o1-preview open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. o1-preview is a proprietary model released by OpenAI.

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