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

Mistral Medium vs Grok 4 Heavy

Mistral
Mistral Medium
SpaceXAI
Grok 4 Heavy
Overview
CompanyMistralSpaceXAI
Release dateDec 2023Jul 9 2025
AccessProprietaryProprietary
Timeline
Release gapMistral Medium shipped 586 days before Grok 4 Heavy

Which is better: Mistral Medium or Grok 4 Heavy?

Mistral Medium and Grok 4 Heavy don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Medium shipped 586 days before Grok 4 Heavy, 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 Grok 4 Heavy don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral Medium was released by Mistral on Dec 2023.

Grok 4 Heavy was released by SpaceXAI on Jul 9 2025.

Other comparisons