# Composer 2

Composer 2 is an AI model released by Cursor on Mar 19 2026. At release it scored 75% on Next.js Evals, 73.7% on SWE-Bench Multilingual and 52.2% on CursorBench v3.1.

## Facts

| Field | Value |
| --- | --- |
| Model | Composer 2 |
| Developer | Cursor |
| Release date | Thursday, Mar 19 2026 |
| Licensing | Proprietary |

## Benchmark scores published at release

| Benchmark | Score | What it measures |
| --- | --- | --- |
| SWE-Bench Multilingual | 73.7% | Like SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. |
| CursorBench v3.1 | 52.2% | Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. |
| Next.js Evals | 75% | Vercel'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. |
| Terminal-Bench 2.0 | 61.7% | Can 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. |

## Questions and answers

### 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.


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Canonical page: https://aireleasetracker.com/model/cursor/composer-2
Full dataset: https://aireleasetracker.com/llms-full.txt · JSON: https://aireleasetracker.com/models.json
Source: AI Release Tracker (https://aireleasetracker.com). Benchmark scores are the figures published by the releasing lab at launch.