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

Pixtral 24.09 vs Grok 4.5

Mistral
Pixtral 24.09
SpaceXAI
Grok 4.5
Overview
CompanyMistralSpaceXAI
Release dateSep 2024Jul 8 2026
AccessOpen WeightProprietary
Benchmarks
Agentic coding
SWE-Bench Pro
64.7%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Timeline
Release gapPixtral 24.09 shipped 675 days before Grok 4.5

Which is better: Pixtral 24.09 or Grok 4.5?

Pixtral 24.09 and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Pixtral 24.09 shipped 675 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

Pixtral 24.09 is open weight, while Grok 4.5 is proprietary.

Direct benchmark comparisons are unavailable — Pixtral 24.09 and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Pixtral 24.09 was released by Mistral on Sep 2024.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Pixtral 24.09 is an open weight model released by Mistral. Grok 4.5 is a proprietary model released by SpaceXAI.

Other comparisons