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

Codestral 22B vs o3

Mistral
Codestral 22B
OpenAI
o3
Overview
CompanyMistralOpenAI
Release dateMay 29 2024Apr 16 2025
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
26%
Timeline
Release gapCodestral 22B shipped 322 days before o3

Which is better: Codestral 22B or o3?

Codestral 22B and o3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral 22B shipped 322 days before o3, 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 — Codestral 22B and o3 don't publish scores on any of the same benchmarks.

Frequently asked questions

Codestral 22B was released by Mistral on May 29 2024.

o3 was released by OpenAI on Apr 16 2025.

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