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

Pixtral 24.09 vs Grok 4.20 Beta

Mistral
Pixtral 24.09
xAI
Grok 4.20 Beta
Overview
CompanyMistralxAI
Release dateSep 2024Feb 17 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapPixtral 24.09 shipped 534 days before Grok 4.20 Beta

Which is better: Pixtral 24.09 or Grok 4.20 Beta?

Pixtral 24.09 and Grok 4.20 Beta don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Pixtral 24.09 shipped 534 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.

Pixtral 24.09 is an open-source / open-weight model; Grok 4.20 Beta is proprietary.

Direct benchmark comparisons are unavailable — Pixtral 24.09 and Grok 4.20 Beta don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Pixtral 24.09 released?
Pixtral 24.09 was released by Mistral on Sep 2024.
When was Grok 4.20 Beta released?
Grok 4.20 Beta was released by xAI on Feb 17 2026.
Is Pixtral 24.09 or Grok 4.20 Beta open source?
Pixtral 24.09 is an open-source / open-weight model released by Mistral. Grok 4.20 Beta is a proprietary model released by xAI.

Other comparisons