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Magistral Medium vs GPT-4.5

Mistral Magistral Medium vs OpenAI GPT-4.5 — side-by-side specs.

Mistral
Magistral Medium
OpenAI
GPT-4.5
Overview
CompanyMistralOpenAI
Release dateJun 10 2025Feb 27 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGPT-4.5 shipped 103 days before Magistral Medium

Which is better: Magistral Medium or GPT-4.5?

Magistral Medium and GPT-4.5 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. GPT-4.5 shipped 103 days before Magistral Medium, 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 Magistral Medium released?
Magistral Medium was released by Mistral on Jun 10 2025.
When was GPT-4.5 released?
GPT-4.5 was released by OpenAI on Feb 27 2025.

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