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About

Composer 1.5 is the latest agentic coding model from Cursor that balances speed and intelligence for everyday code tasks by scaling reinforcement learning approximately 20x more than its predecessor, enabling stronger performance on real-world programming challenges. It’s designed as a “thinking model” that generates internal reasoning tokens to analyze a user’s codebase and plan next steps, responding quickly to simple problems and engaging deeper reasoning on complex ones, while remaining interactive and fast for daily development workflows. To handle long-running tasks, Composer 1.5 introduces self-summarization, allowing the model to compress and carry forward context when it reaches context limits, which helps maintain accuracy across varying input lengths. Internal benchmarks show it surpasses Composer 1 in coding tasks, especially on more difficult issues, making it more capable for interactive use within Cursor’s environment.

About

Qwen3‑Coder is an agentic code model available in multiple sizes, led by the 480B‑parameter Mixture‑of‑Experts variant (35B active) that natively supports 256K‑token contexts (extendable to 1M) and achieves state‑of‑the‑art results comparable to Claude Sonnet 4. Pre‑training on 7.5T tokens (70 % code) and synthetic data cleaned via Qwen2.5‑Coder optimized both coding proficiency and general abilities, while post‑training employs large‑scale, execution‑driven reinforcement learning, scaling test‑case generation for diverse coding challenges, and long‑horizon RL across 20,000 parallel environments to excel on multi‑turn software‑engineering benchmarks like SWE‑Bench Verified without test‑time scaling. Alongside the model, the open source Qwen Code CLI (forked from Gemini Code) unleashes Qwen3‑Coder in agentic workflows with customized prompts, function calling protocols, and seamless integration with Node.js, OpenAI SDKs, and environment variables.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Software developers and engineers requiring an AI coding assistant that delivers smart, interactive code generation and reasoning support within their coding workflows

Audience

AI researchers and software engineers wanting a solution offering an agentic coding model with large‑context support and turnkey CLI tools for real‑world, automated code generation

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Cursor
Founded: 2023
United States
cursor.com/blog/composer-1-5

Company Information

Qwen
Founded: 2023
China
qwenlm.github.io/blog/qwen3-coder/

Alternatives

Composer 2

Composer 2

Cursor

Alternatives

SWE-1.5

SWE-1.5

Cognition
Composer 1

Composer 1

Cursor
Composer 1

Composer 1

Cursor
DeepCoder

DeepCoder

Agentica Project
Grok 4.5

Grok 4.5

SpaceXAI

Categories

Categories

Integrations

Alibaba Cloud
Brokk
Cursor
Gemini
Gemini Enterprise
Nebius Token Factory
NexaSDK
Node.js
Okara
OpenAI
OpenClaw
OpenCode
Oxlo.ai
Qwen2.5
Shiori
SiliconFlow
Tinfoil
Together AI

Integrations

Alibaba Cloud
Brokk
Cursor
Gemini
Gemini Enterprise
Nebius Token Factory
NexaSDK
Node.js
Okara
OpenAI
OpenClaw
OpenCode
Oxlo.ai
Qwen2.5
Shiori
SiliconFlow
Tinfoil
Together AI
Claim Composer 1.5 and update features and information
Claim Composer 1.5 and update features and information
Claim Qwen3-Coder and update features and information
Claim Qwen3-Coder and update features and information