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Gemini 3.0 Flash vs Grok 4.20 Beta

2 vs 0 benchmarks won

Google
Gemini 3.0 Flash
xAI
Grok 4.20 Beta
Overview
CompanyGooglexAI
Release dateDec 17 2025Feb 17 2026
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 gapGemini 3.0 Flash shipped 62 days before Grok 4.20 Beta

Which is better: Gemini 3.0 Flash or Grok 4.20 Beta?

Gemini 3.0 Flash leads Grok 4.20 Beta on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 3.0 Flash shipped 62 days before Grok 4.20 Beta, 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 4.20 Beta released?
Grok 4.20 Beta was released by xAI on Feb 17 2026.

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