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

Home/Compare/Gemini 1.5 Flash vs Grok 4.3 Beta

Gemini 1.5 Flash vs Grok 4.3 Beta

Google Gemini 1.5 Flash vs xAI Grok 4.3 Beta — side-by-side specs.

Google
Gemini 1.5 Flash
xAI
Grok 4.3 Beta
Overview
CompanyGooglexAI
Release dateMay 14 2024Apr 17 2026
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 703 days before Grok 4.3 Beta

Which is better: Gemini 1.5 Flash or Grok 4.3 Beta?

Gemini 1.5 Flash and Grok 4.3 Beta do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 1.5 Flash shipped 703 days before Grok 4.3 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 1.5 Flash released?
Gemini 1.5 Flash was released by Google on May 14 2024.
When was Grok 4.3 Beta released?
Grok 4.3 Beta was released by xAI on Apr 17 2026.

Other comparisons