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

Mistral 7B vs o3-pro

Mistral
Mistral 7B
OpenAI
o3-pro
Overview
CompanyMistralOpenAI
Release dateSep 27 2023Jun 10 2025
AccessOpen WeightProprietary
Timeline
Release gapMistral 7B shipped 622 days before o3-pro

Which is better: Mistral 7B or o3-pro?

Mistral 7B and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral 7B shipped 622 days before o3-pro, so benchmark comparisons should account for the intervening progress.

Mistral 7B is open weight, while o3-pro is proprietary.

Direct benchmark comparisons are unavailable — Mistral 7B and o3-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral 7B was released by Mistral on Sep 27 2023.

o3-pro was released by OpenAI on Jun 10 2025.

Mistral 7B is an open weight model released by Mistral. o3-pro is a proprietary model released by OpenAI.

Other comparisons