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Codestral 22B vs GPT-5.2

0 vs 2 benchmarks won

Mistral
Codestral 22B
OpenAI
GPT-5.2
Overview
CompanyMistralOpenAI
Release dateMay 29 2024Dec 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 gapCodestral 22B shipped 561 days before GPT-5.2

Which is better: Codestral 22B or GPT-5.2?

GPT-5.2 leads Codestral 22B on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Codestral 22B shipped 561 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 Codestral 22B released?
Codestral 22B was released by Mistral on May 29 2024.
When was GPT-5.2 released?
GPT-5.2 was released by OpenAI on Dec 11 2025.

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