When was Claude 3.7 Sonnet released?

Claude 3.7 Sonnet was released by Anthropic on Feb 24 2025.

When was GPT-5.2 released?

GPT-5.2 was released by OpenAI on Dec 11 2025.

Which is better on GPQA Diamond, Claude 3.7 Sonnet or GPT-5.2?

GPT-5.2 scores higher on GPQA Diamond — Claude 3.7 Sonnet 68% vs GPT-5.2 92.4%.

Which is better at coding, Claude 3.7 Sonnet or GPT-5.2?

On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Claude 3.7 Sonnet scores 62.3% and GPT-5.2 scores 80%.

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Home/Compare/Claude 3.7 Sonnet vs GPT-5.2

Claude 3.7 Sonnet vs GPT-5.2

0 vs 2 benchmarks won

	Anthropic Claude 3.7 Sonnet	OpenAI GPT-5.2
Overview
Company	Anthropic	OpenAI
Release date	Feb 24 2025	Dec 11 2025
Model type	—	—
Open source	No	No
Specifications
Parameters	—	—
Context window	—	—
Benchmarks
Science reasoning GPQA Diamond	68%	92.4%
Software engineering SWE-Bench Verified	62.3%	80%
Multimodal understanding MMMU	—	—
Timeline
Release gap	Claude 3.7 Sonnet shipped 290 days before GPT-5.2

Which is better: Claude 3.7 Sonnet or GPT-5.2?

GPT-5.2 leads Claude 3.7 Sonnet on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.7 Sonnet shipped 290 days before GPT-5.2, 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-5.2 scores 92.4%, 24.4 points above Claude 3.7 Sonnet at 68%. On SWE-Bench Verified, GPT-5.2 scores 80%, 17.7 points above Claude 3.7 Sonnet at 62.3%.

Frequently asked questions

When was Claude 3.7 Sonnet released?: Claude 3.7 Sonnet was released by Anthropic on Feb 24 2025.
When was GPT-5.2 released?: GPT-5.2 was released by OpenAI on Dec 11 2025.
Which is better on GPQA Diamond, Claude 3.7 Sonnet or GPT-5.2?: GPT-5.2 scores higher on GPQA Diamond — Claude 3.7 Sonnet 68% vs GPT-5.2 92.4%.
Which is better at coding, Claude 3.7 Sonnet or GPT-5.2?: On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Claude 3.7 Sonnet scores 62.3% and GPT-5.2 scores 80%.