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Gemini 2.5 Pro vs GPT-4.5

3 vs 0 benchmarks won

Google
Gemini 2.5 Pro
OpenAI
GPT-4.5
Overview
CompanyGoogleOpenAI
Release dateMar 25 2025Feb 27 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
86.4%
Software engineering
SWE-Bench Verified
59.6%
Multimodal understanding
MMMU
68%
Timeline
Release gapGPT-4.5 shipped 26 days before Gemini 2.5 Pro

Which is better: Gemini 2.5 Pro or GPT-4.5?

Gemini 2.5 Pro leads GPT-4.5 on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). GPT-4.5 shipped 26 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.

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 2.5 Pro released?
Gemini 2.5 Pro was released by Google on Mar 25 2025.
When was GPT-4.5 released?
GPT-4.5 was released by OpenAI on Feb 27 2025.

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