AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Mistral Medium vs o4-mini

Mistral
Mistral Medium
OpenAI
o4-mini
Overview
CompanyMistralOpenAI
Release dateDec 11 2023Apr 16 2025
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
8%
Timeline
Release gapMistral Medium shipped 492 days before o4-mini

Which is better: Mistral Medium or o4-mini?

Mistral Medium and o4-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Medium shipped 492 days before o4-mini, 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 — Mistral Medium and o4-mini don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral Medium was released by Mistral on Dec 11 2023.

o4-mini was released by OpenAI on Apr 16 2025.

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