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

o3-pro vs Grok‑2

OpenAI
o3-pro
SpaceXAI
Grok‑2
Overview
CompanyOpenAISpaceXAI
Release dateJun 10 2025Aug 14 2024
AccessProprietaryProprietary
Timeline
Release gapGrok‑2 shipped 300 days before o3-pro

Which is better: o3-pro or Grok‑2?

o3-pro and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 300 days before o3-pro, 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 — o3-pro and Grok‑2 don't publish scores on any of the same benchmarks.

Frequently asked questions

o3-pro was released by OpenAI on Jun 10 2025.

Grok‑2 was released by SpaceXAI on Aug 14 2024.

Other comparisons