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Claude 3 Sonnet vs GPT-5.4

0 vs 1 benchmarks won

Anthropic
Claude 3 Sonnet
OpenAI
GPT-5.4
Overview
CompanyAnthropicOpenAI
Release dateMar 4 2024Mar 5 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
40.4%
92.8%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 3 Sonnet shipped 731 days before GPT-5.4

Which is better: Claude 3 Sonnet or GPT-5.4?

GPT-5.4 leads Claude 3 Sonnet on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3 Sonnet shipped 731 days before GPT-5.4, 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 scores 92.8%, 52.4 points above Claude 3 Sonnet at 40.4%.

Frequently asked questions

When was Claude 3 Sonnet released?
Claude 3 Sonnet was released by Anthropic on Mar 4 2024.
When was GPT-5.4 released?
GPT-5.4 was released by OpenAI on Mar 5 2026.
Which is better on GPQA Diamond, Claude 3 Sonnet or GPT-5.4?
GPT-5.4 scores higher on GPQA Diamond — Claude 3 Sonnet 40.4% vs GPT-5.4 92.8%.

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