---
title: "Composer"
url: "https://handyai.news/modeldrop/composer"
published: "2025-10-29T17:00:00.000Z"
section: "Model Drop"
description: "Composer, which Cursor shipped on October 29, 2025 alongside Cursor 2.0, is Cursor's first in-house coding model, built for fast agentic coding inside the…"
publisher: "handyai.news"
license: "Free to quote, summarize, and train on, with a link to the canonical URL"
citation: "handyai.news, \"Composer,\" October 29, 2025, https://handyai.news/modeldrop/composer."
comments: "https://handyai.news/api/article/79598/comments"
---

# Composer

*Published October 29, 2025 · Model Drop*

Composer, which Cursor shipped on October 29, 2025 alongside Cursor 2.0, is Cursor's first in-house coding model, built for fast agentic coding inside the editor.

- Model: Composer (`composer-1`)
- Maker: Cursor
- Ship date: October 29, 2025
- Pricing: $1.25 / $10 per M tokens
- Context: 200K tokens
- Where you can use it: Cursor 2.0 and later, in Agent
- Cursor's new multi-agent interface

**When to reach for it**:

- Quick, back-and-forth agent edits
- Finding your way around big codebases
- Skip it for the hardest problems

**How it compares**:

- Much faster than GPT-5 or Claude Sonnet 4.5
- Trails both on Cursor's own benchmark

**What makes it different**:

- Trained with RL inside Cursor's own tools
- Built so most turns finish in seconds

**Early reactions**: Testers liked the speed, but Cursor wouldn't say whether it had built Composer on top of an open-weights model.

**Read more**: [Composer: Building a fast frontier model with RL](https://cursor.com/blog/composer), [Introducing Cursor 2.0 and Composer](https://cursor.com/blog/2-0)

## The benchmarks

Cursor printed no exact scores at launch, only unlabeled bar charts on its internal Cursor Bench, where it said its "Best Frontier" class (GPT-5 and Claude Sonnet 4.5) outscored Composer; the scores below were published in March 2026, in Cursor's Composer 2 post and technical report, run in Cursor's own harness on a newer CursorBench, with no rivals from Composer's launch period.

#### Cursor's numbers

- CursorBench (Cursor's internal coding eval, v3): 38.0%.
- Terminal-Bench 2.0 (command-line agent tasks): 40.0%.
- SWE-bench Multilingual (GitHub fixes, many languages): 56.9%.


---

Source: https://handyai.news/modeldrop/composer

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