When was Claude Opus 4.7 released?

Claude Opus 4.7 was released by Anthropic on Apr 16 2026.

When was Claude Sonnet 4.5 released?

Claude Sonnet 4.5 was released by Anthropic on Sep 29 2025.

Which is better on GPQA Diamond, Claude Opus 4.7 or Claude Sonnet 4.5?

Claude Opus 4.7 scores higher on GPQA Diamond — Claude Opus 4.7 94.2% vs Claude Sonnet 4.5 83.4%.

Which is better at coding, Claude Opus 4.7 or Claude Sonnet 4.5?

On SWE-Bench Verified (real-world software-engineering tasks), Claude Opus 4.7 leads — Claude Opus 4.7 scores 87.6% and Claude Sonnet 4.5 scores 77.2%.

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Latest Release

Claude Opus 4.7

Apr 16 2026

Home/Compare/Claude Opus 4.7 vs Claude Sonnet 4.5

Claude Opus 4.7 vs Claude Sonnet 4.5

2 vs 1 benchmarks won

	Anthropic Claude Opus 4.7	Anthropic Claude Sonnet 4.5
Overview
Company	Anthropic	Anthropic
Release date	Apr 16 2026	Sep 29 2025
Model type	—	—
Open source	No	No
Specifications
Parameters	—	—
Context window	—	—
Benchmarks
Science reasoning GPQA Diamond	94.2%	83.4%
Software engineering SWE-Bench Verified	87.6%	77.2%
Multimodal understanding MMMU	—	68%
Timeline
Release gap	Claude Sonnet 4.5 shipped 199 days before Claude Opus 4.7

Which is better: Claude Opus 4.7 or Claude Sonnet 4.5?

Claude Opus 4.7 leads Claude Sonnet 4.5 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Sonnet 4.5 shipped 199 days before Claude Opus 4.7, 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, Claude Opus 4.7 scores 94.2%, 10.8 points above Claude Sonnet 4.5 at 83.4%. On SWE-Bench Verified, Claude Opus 4.7 scores 87.6%, 10.4 points above Claude Sonnet 4.5 at 77.2%.

Frequently asked questions

When was Claude Opus 4.7 released?: Claude Opus 4.7 was released by Anthropic on Apr 16 2026.
When was Claude Sonnet 4.5 released?: Claude Sonnet 4.5 was released by Anthropic on Sep 29 2025.
Which is better on GPQA Diamond, Claude Opus 4.7 or Claude Sonnet 4.5?: Claude Opus 4.7 scores higher on GPQA Diamond — Claude Opus 4.7 94.2% vs Claude Sonnet 4.5 83.4%.
Which is better at coding, Claude Opus 4.7 or Claude Sonnet 4.5?: On SWE-Bench Verified (real-world software-engineering tasks), Claude Opus 4.7 leads — Claude Opus 4.7 scores 87.6% and Claude Sonnet 4.5 scores 77.2%.