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

Gemini 2.5 Pro vs Grok 4.5

Google
Gemini 2.5 Pro
SpaceXAI
Grok 4.5
Overview
CompanyGoogleSpaceXAI
Release dateMar 25 2025Jul 8 2026
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
20%
Agentic coding
SWE-Bench Pro
64.7%
Coding
SWE-Bench Verified
59.6%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Science
GPQA Diamond
86.4%
Multimodal
MMMU
68%
Timeline
Release gapGemini 2.5 Pro shipped 470 days before Grok 4.5

Which is better: Gemini 2.5 Pro or Grok 4.5?

Gemini 2.5 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 2.5 Pro shipped 470 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 2.5 Pro and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemini 2.5 Pro was released by Google on Mar 25 2025.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

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