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Gemini 2.5 Pro vs Grok Code Fast 1

3 vs 0 benchmarks won

Google
Gemini 2.5 Pro
xAI
Grok Code Fast 1
Overview
CompanyGooglexAI
Release dateMar 25 2025Aug 28 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
86.4%
Software engineering
SWE-Bench Verified
59.6%
Multimodal understanding
MMMU
68%
Timeline
Release gapGemini 2.5 Pro shipped 156 days before Grok Code Fast 1

Which is better: Gemini 2.5 Pro or Grok Code Fast 1?

Gemini 2.5 Pro leads Grok Code Fast 1 on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Pro shipped 156 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Gemini 2.5 Pro released?
Gemini 2.5 Pro was released by Google on Mar 25 2025.
When was Grok Code Fast 1 released?
Grok Code Fast 1 was released by xAI on Aug 28 2025.

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