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Gemini 1.5 Flash vs Grok 3

Google Gemini 1.5 Flash vs xAI Grok 3 — side-by-side specs.

Google
Gemini 1.5 Flash
xAI
Grok 3
Overview
CompanyGooglexAI
Release dateMay 14 2024Feb 17 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGemini 1.5 Flash shipped 279 days before Grok 3

Which is better: Gemini 1.5 Flash or Grok 3?

Gemini 1.5 Flash and Grok 3 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 1.5 Flash shipped 279 days before Grok 3, 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 1.5 Flash released?
Gemini 1.5 Flash was released by Google on May 14 2024.
When was Grok 3 released?
Grok 3 was released by xAI on Feb 17 2025.

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