CO

Composer 1

Foundation model

Composer 1

Release date: 2025-10-29Updated: 2026-03-22 13:59:19.850757
Live demoGitHubHugging FaceCompare
Parameters
Not disclosed
Context length
200K
Chinese support
Not supported
Reasoning ability

Composer 1 is an AI model published by Cursor, released on 2025-10-29, for Foundation model, and 200K context length, under the 不开源 license, with a 56.90 score on SWE-bench Multilingual.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Composer 1

Model basics

Reasoning traces
Not supported
Thinking modes
Thinking Mode (Default)Standard Mode
Context length
200K tokens
Max output length
4K tokens
Model type
Foundation model
Modality (in / out)
No data
Release date
2025-10-29
Model file size
No data
MoE architecture
No
Total params / Active params
No data / N/A
Knowledge cutoff
No data
Composer 1

Open source & experience

Code license
不开源
Weights license
不开源
GitHub repo
GitHub link unavailable
Hugging Face
Hugging Face link unavailable
Live demo
No live demo
Composer 1

Official resources

DataLearnerAI blog
No blog post yet
Composer 1

API details

API speed
4/5
💡Default unit: $/1M tokens. If vendors use other units, follow their published pricing.
Standard
TypeConditionInputOutput
Text-$1.25/ 1M$10.00/ 1M
Cache PricingPrompt Cache
TypeTTLWriteRead
Text--$0.125/ 1M
Composer 1

Benchmark Results

Composer 1 currently shows benchmark results led by Terminal Bench 2.0 (44 / 46, score 40), SWE-bench Multilingual (20 / 20, score 56.90). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.

Thinking

AI Agent - Tool Usage

1 evaluations
Benchmark / mode
Score
Rank/total
Terminal Bench 2.0
Thinking Mode
40
44 / 46

Coding and Software Engineer

1 evaluations
Benchmark / mode
Score
Rank/total
56.90
20 / 20

Compare with other models

No curated comparisons for this model yet.

Want a custom combination? Open the compare tool

Composer 1

Publisher

Composer 1

Model Overview

Composer 1 is an AI model published by Cursor, released on 2025-10-29, for Foundation model, and 200K context length, under the 不开源 license, with a 56.90 score on SWE-bench Multilingual.

DataLearner on WeChat

Follow DataLearner on WeChat for AI model updates and research notes.

DataLearner WeChat QR code