Composer 2
Composer 2 is an AI model released by Cursor on Thursday, Mar 19 2026, 38 days after Composer 1.5. Benchmark results (shown below) cover SWE-Bench Multilingual, CursorBench v3.1, Next.js Evals, and Terminal-Bench 2.0.
Benchmarks
Multilingual coding
SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better.
73.7%
#6 of 7Best: Claude Opus 4.8 · 84.4%
Agentic coding
CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better.
52.2%
#8 of 12Best: Claude Fable 5 · 72.9%
Next.js coding
Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better.
75%
#11 of 22Best: Composer 2.5 · 92%
Agentic terminal coding
Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better.
61.7%
#7 of 9Best: GPT-5.5 · 82.7%
Composer 2 — frequently asked questions
- When was Composer 2 released?
- Composer 2 was released by Cursor on Thursday, Mar 19 2026.
- Who made Composer 2?
- Composer 2 was built by Cursor.
- What benchmark scores did Composer 2 get?
- Composer 2 reports 4 tracked benchmark scores — SWE-Bench Multilingual: 73.7%; CursorBench v3.1: 52.2%; Next.js Evals: 75%; Terminal-Bench 2.0: 61.7%. Scores are the figures published at release by Cursor.
- Is Composer 2 open source?
- No. Composer 2 is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
- What came before and after Composer 2?
- Cursor's previous tracked release was Composer 1.5 on Feb 9 2026, 38 days earlier. It was followed by Composer 2.5 on May 18 2026.