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

o1-pro vs Grok Code Fast 1

OpenAI
o1-pro
SpaceXAI
Grok Code Fast 1
Overview
CompanyOpenAISpaceXAI
Release dateMar 19 2025Aug 28 2025
AccessProprietaryProprietary
Timeline
Release gapo1-pro shipped 162 days before Grok Code Fast 1

Which is better: o1-pro or Grok Code Fast 1?

o1-pro and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-pro shipped 162 days before Grok Code Fast 1, 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-pro and Grok Code Fast 1 don't publish scores on any of the same benchmarks.

Frequently asked questions

o1-pro was released by OpenAI on Mar 19 2025.

Grok Code Fast 1 was released by SpaceXAI on Aug 28 2025.

Other comparisons