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Mistral Medium 3 vs GPT-5.2

0 vs 2 benchmarks won

Mistral
Mistral Medium 3
OpenAI
GPT-5.2
Overview
CompanyMistralOpenAI
Release dateMay 7 2025Dec 11 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
92.4%
Software engineering
SWE-Bench Verified
80%
Multimodal understanding
MMMU
Timeline
Release gapMistral Medium 3 shipped 218 days before GPT-5.2

Which is better: Mistral Medium 3 or GPT-5.2?

GPT-5.2 leads Mistral Medium 3 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Mistral Medium 3 shipped 218 days before GPT-5.2, 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Mistral Medium 3 released?
Mistral Medium 3 was released by Mistral on May 7 2025.
When was GPT-5.2 released?
GPT-5.2 was released by OpenAI on Dec 11 2025.

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