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

Home/Compare/Gemini 3.1 Flash-Lite vs Grok 4.20 Beta

Gemini 3.1 Flash-Lite vs Grok 4.20 Beta

Google Gemini 3.1 Flash-Lite vs xAI Grok 4.20 Beta — side-by-side specs.

Google
Gemini 3.1 Flash-Lite
xAI
Grok 4.20 Beta
Overview
CompanyGooglexAI
Release dateMar 3 2026Feb 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 gapGrok 4.20 Beta shipped 14 days before Gemini 3.1 Flash-Lite

Which is better: Gemini 3.1 Flash-Lite or Grok 4.20 Beta?

Gemini 3.1 Flash-Lite and Grok 4.20 Beta do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok 4.20 Beta shipped 14 days before Gemini 3.1 Flash-Lite, 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 3.1 Flash-Lite released?
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.
When was Grok 4.20 Beta released?
Grok 4.20 Beta was released by xAI on Feb 17 2026.

Other comparisons