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Gemini 3.0 Flash vs Grok 2.5

2 vs 0 benchmarks won

Google
Gemini 3.0 Flash
xAI
Grok 2.5
Overview
CompanyGooglexAI
Release dateDec 17 2025Aug 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
90.4%
Software engineering
SWE-Bench Verified
78%
Multimodal understanding
MMMU
Timeline
Release gapGrok 2.5 shipped 138 days before Gemini 3.0 Flash

Which is better: Gemini 3.0 Flash or Grok 2.5?

Gemini 3.0 Flash leads Grok 2.5 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Grok 2.5 shipped 138 days before Gemini 3.0 Flash, 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 3.0 Flash released?
Gemini 3.0 Flash was released by Google on Dec 17 2025.
When was Grok 2.5 released?
Grok 2.5 was released by xAI on Aug 2025.

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