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Gemini 3.1 Pro vs GPT-5.4-Pro

1 vs 1 benchmarks won

Google
Gemini 3.1 Pro
OpenAI
GPT-5.4-Pro
Overview
CompanyGoogleOpenAI
Release dateFeb 19 2026Mar 5 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.3%
94.4%
Software engineering
SWE-Bench Verified
80.6%
Multimodal understanding
MMMU
Timeline
Release gapGemini 3.1 Pro shipped 14 days before GPT-5.4-Pro

Which is better: Gemini 3.1 Pro or GPT-5.4-Pro?

Gemini 3.1 Pro and GPT-5.4-Pro are evenly matched across the benchmarks they both publish. Gemini 3.1 Pro shipped 14 days before GPT-5.4-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 GPQA Diamond, GPT-5.4-Pro scores 94.4%, 0.1 points above Gemini 3.1 Pro at 94.3%.

Frequently asked questions

When was Gemini 3.1 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.
When was GPT-5.4-Pro released?
GPT-5.4-Pro was released by OpenAI on Mar 5 2026.
Which is better on GPQA Diamond, Gemini 3.1 Pro or GPT-5.4-Pro?
GPT-5.4-Pro scores higher on GPQA Diamond — Gemini 3.1 Pro 94.3% vs GPT-5.4-Pro 94.4%.

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