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

Gemini 2.5 Pro vs GPT-4o mini

Google
Gemini 2.5 Pro
OpenAI
GPT-4o mini
Overview
CompanyGoogleOpenAI
Release dateMar 25 2025Jul 18 2024
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
20%Best
2%
Coding
SWE-Bench Verified
59.6%
Science
GPQA Diamond
86.4%
Multimodal
MMMU
68%
Timeline
Release gapGPT-4o mini shipped 250 days before Gemini 2.5 Pro

Which is better: Gemini 2.5 Pro or GPT-4o mini?

Gemini 2.5 Pro leads GPT-4o mini on 1 of the 1 benchmark they both report (BullshitBench v2). GPT-4o mini shipped 250 days before Gemini 2.5 Pro, 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 2.5 Pro leads at 20% vs GPT-4o mini at 2%.

Frequently asked questions

Gemini 2.5 Pro was released by Google on Mar 25 2025.

GPT-4o mini was released by OpenAI on Jul 18 2024.

Other comparisons