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

o1-mini vs Grok 2.5

OpenAI
o1-mini
SpaceXAI
Grok 2.5
Overview
CompanyOpenAISpaceXAI
Release dateSep 12 2024Aug 2025
AccessProprietaryProprietary
Timeline
Release gapo1-mini shipped 323 days before Grok 2.5

Which is better: o1-mini or Grok 2.5?

o1-mini and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-mini shipped 323 days before Grok 2.5, 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 — o1-mini and Grok 2.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

o1-mini was released by OpenAI on Sep 12 2024.

Grok 2.5 was released by SpaceXAI on Aug 2025.

Other comparisons