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Mistral Small 3.1 vs GPT-5.4-Pro

0 vs 1 benchmarks won

Mistral
Mistral Small 3.1
OpenAI
GPT-5.4-Pro
Overview
CompanyMistralOpenAI
Release dateMar 17 2025Mar 5 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.4%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMistral Small 3.1 shipped 353 days before GPT-5.4-Pro

Which is better: Mistral Small 3.1 or GPT-5.4-Pro?

GPT-5.4-Pro leads Mistral Small 3.1 on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Mistral Small 3.1 shipped 353 days before GPT-5.4-Pro, so benchmark comparisons should account for the intervening progress.

Mistral Small 3.1 is an open-source / open-weight model; GPT-5.4-Pro is proprietary.

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 Small 3.1 released?
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
When was GPT-5.4-Pro released?
GPT-5.4-Pro was released by OpenAI on Mar 5 2026.
Is Mistral Small 3.1 or GPT-5.4-Pro open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. GPT-5.4-Pro is a proprietary model released by OpenAI.

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