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About

Composer 2.5 is the latest AI coding model released by Cursor, offering major improvements in intelligence, collaboration, and long-task performance compared to Composer 2. The model is designed to follow complex instructions more accurately while providing a smoother and more natural user experience during coding sessions. Cursor enhanced Composer 2.5 through larger-scale training, more advanced reinforcement learning environments, and improved behavioral tuning focused on communication and effort calibration. The model uses targeted reinforcement learning with textual feedback to correct specific mistakes during training, helping it avoid issues like invalid tool calls or poor coding behavior. Composer 2.5 was also trained using significantly more synthetic coding tasks, enabling it to handle increasingly difficult programming challenges and real-world development scenarios.

About

Packagist is the main composer repository. It aggregates public PHP packages installable with Composer. Put a file named composer.json at the root of your project, containing your project dependencies. Packagist is the default Composer package repository. It lets you find packages and lets Composer know where to get the code from. You can use Composer to manage your project or libraries' dependencies. First of all, you must pick a package name. This is a very important step since it can not change and it should be unique enough to avoid conflicts in the future. The package name consists of a vendor name and a project name joined by a/. The vendor name exists to prevent naming conflicts. The composer.json file should reside at the top of your package's git/svn/ repository and is the way you describe your package to both packagist and composer. New versions of your package are automatically fetched from tags you create in your VCS repository.

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, engineering teams, AI researchers, and enterprise organizations looking for advanced AI-assisted coding and large-scale software development solutions

Audience

Individuals and developers looking for a solution to create and manage their package repositories

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

$0.50/M input
$0.50/M input and $2.50/M output tokens
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5

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

Pros & Cons from Real Users

Pros

  • Composer 2.5 feels like a very practical coding model because it is built for the place I actually use it: Cursor. It is fast, focused, and tuned for agentic coding work instead of trying to be a general-purpose chatbot that also happens to write code. The cost-performance balance is the biggest win. If a model can stay near the top of coding-agent rankings while being dramatically cheaper than heavier flagship models, that matters a lot for everyday development. I also like that it feels optimized for real Cursor workflows. It can help with multi-file edits, repo exploration, implementation, debugging, and agent-style tasks without making every run feel slow or expensive.

Cons

  • Composer 2.5 is still not the model I would blindly trust for every hard architecture decision or risky production change. I would still review diffs, run tests, and use stronger models when the task needs deeper reasoning. It is also tied closely to Cursor, which is great if you already live there, but less ideal if you want a model you can use everywhere with the same workflow.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Cursor
Founded: 2022
United States
cursor.com

Company Information

Packagist
packagist.org

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

Composer 1

Composer 1

Cursor

Categories

Categories

Integrations

Bash
C#
C++
CSS
Cursor
Dart
GitHub
GitLab
Go
Grok Build
HTML
Java
JavaScript
Kotlin
Objective-C
Python
Ruby
SQL
Swift
TypeScript

Integrations

Bash
C#
C++
CSS
Cursor
Dart
GitHub
GitLab
Go
Grok Build
HTML
Java
JavaScript
Kotlin
Objective-C
Python
Ruby
SQL
Swift
TypeScript
Claim Composer 2.5 and update features and information
Claim Composer 2.5 and update features and information
Claim Packagist and update features and information
Claim Packagist and update features and information