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

Gemini 3.1 Flash-Lite vs o4-mini

Google
Gemini 3.1 Flash-Lite
OpenAI
o4-mini
Overview
CompanyGoogleOpenAI
Release dateMar 3 2026Apr 16 2025
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
11%Best
8%
Timeline
Release gapo4-mini shipped 321 days before Gemini 3.1 Flash-Lite

Which is better: Gemini 3.1 Flash-Lite or o4-mini?

Gemini 3.1 Flash-Lite leads o4-mini on 1 of the 1 benchmark they both report (BullshitBench v2). o4-mini shipped 321 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.

On BullshitBench v2, Gemini 3.1 Flash-Lite leads at 11% vs o4-mini at 8%.

Frequently asked questions

Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.

o4-mini was released by OpenAI on Apr 16 2025.

Other comparisons