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GPT-3.5 vs GPT-5.4-Pro

0 vs 1 benchmarks won

OpenAI
GPT-3.5
OpenAI
GPT-5.4-Pro
Overview
CompanyOpenAIOpenAI
Release dateNov 30 2022Mar 5 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.4%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGPT-3.5 shipped 1191 days before GPT-5.4-Pro

Which is better: GPT-3.5 or GPT-5.4-Pro?

GPT-5.4-Pro leads GPT-3.5 on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). GPT-3.5 shipped 1191 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.

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 GPT-3.5 released?
GPT-3.5 was released by OpenAI on Nov 30 2022.
When was GPT-5.4-Pro released?
GPT-5.4-Pro was released by OpenAI on Mar 5 2026.

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