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

Mistral Small 4 vs o4-mini-high

Mistral
Mistral Small 4
OpenAI
o4-mini-high
Overview
CompanyMistralOpenAI
Release dateMar 16 2026Apr 16 2025
AccessProprietaryProprietary
Timeline
Release gapo4-mini-high shipped 334 days before Mistral Small 4

Which is better: Mistral Small 4 or o4-mini-high?

Mistral Small 4 and o4-mini-high don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o4-mini-high shipped 334 days before Mistral Small 4, 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 Small 4 and o4-mini-high don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral Small 4 was released by Mistral on Mar 16 2026.

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

Other comparisons