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

Gemini 1.5 Pro vs Grok 4.5

Google
Gemini 1.5 Pro
SpaceXAI
Grok 4.5
Overview
CompanyGoogleSpaceXAI
Release dateFeb 15 2024Jul 8 2026
AccessProprietaryProprietary
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 gapGemini 1.5 Pro shipped 874 days before Grok 4.5

Which is better: Gemini 1.5 Pro or Grok 4.5?

Gemini 1.5 Pro and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.5 Pro shipped 874 days before Grok 4.5, 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 — Gemini 1.5 Pro and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemini 1.5 Pro was released by Google on Feb 15 2024.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Other comparisons