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Claude 3.7 Sonnet vs Composer 2

Anthropic Claude 3.7 Sonnet vs Cursor Composer 2 — side-by-side specs.

Anthropic
Claude 3.7 Sonnet
Cursor
Composer 2
Overview
CompanyAnthropicCursor
Release dateFeb 24 2025Mar 20 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
62.3%
Multilingual coding
SWE-Bench Multilingual
73.7%
Agentic coding
CursorBench v3.1
52.2%
Agentic terminal coding
Terminal-Bench 2.0
61.7%
Science
GPQA Diamond
68%
Timeline
Release gapClaude 3.7 Sonnet shipped 389 days before Composer 2

Which is better: Claude 3.7 Sonnet or Composer 2?

Claude 3.7 Sonnet and Composer 2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.7 Sonnet shipped 389 days before Composer 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.

Direct benchmark comparisons are unavailable — Claude 3.7 Sonnet and Composer 2 don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Claude 3.7 Sonnet released?
Claude 3.7 Sonnet was released by Anthropic on Feb 24 2025.
When was Composer 2 released?
Composer 2 was released by Cursor on Mar 20 2026.

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