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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

Muse Wonder is a frontier artificial intelligence model developed by Meta for personal assistance, professional workflows, software development, and autonomous agent tasks. The model combines Active Memory, which retrieves relevant information from previous conversations, with Active Focus, which supports sustained execution of complex, multistep assignments. Muse Wonder can assist with research, document analysis, financial and legal information, software engineering, and business process automation. Its agentic capabilities enable it to work across applications, use contextual information, adapt to obstacles, and request clarification or approval when necessary. The model supports coding activities ranging from small application development to complex software projects involving repeated testing and revision. Muse Wonder is available through the Meta Model API and Muse Code, with additional integration into Meta's Muse assistant planned for future releases.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

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

Audience

Software developers, AI engineers, researchers, business professionals, knowledge workers, enterprise teams, and individuals seeking advanced AI assistance for complex reasoning, software development, personalized workflows, and autonomous task execution

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0.50/M input
$0.50/M input and $2.50/M output tokens
Free Version Supported
Free Trial Not Supported

Pricing

$4 per 1M tokens (input)
Input: $4 per 1M tokens
Output: $20 per 1M tokens
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

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

Reviews/Ratings

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

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.

Pros & Cons from Real Users

Pros

  • It feels much better at keeping track of what I am trying to accomplish across longer coding, research, and agent workflows instead of slowly losing the thread. Active Memory is especially useful. The model does a better job carrying important context forward, which makes extended projects feel less like repeatedly briefing a new assistant. I also like the new Active Focus approach. Wonder feels more deliberate about working toward the actual goal instead of getting distracted by side issues, which matters a lot when I give an agent something that takes many steps to finish. The coding ability is strong too. Meta is positioning Wonder against models like GPT-6 Astra and Claude Opus 5.5, and early reporting says it is especially competitive in software development and professional agentic work.

Cons

  • No real cons so far. I am still not sure how efficient pricing is.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Cursor
Founded: 2022
United States
cursor.com

Company Information

Meta
Founded: 2004
United States
meta.ai/

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

Composer 1

Composer 1

Cursor

Categories

AI Coding Models Supported
AI Models Supported

Categories

AI Coding Models Supported
AI Models Supported
Foundation Models Supported
Multimodal Models Supported

Integrations

.NET Supported
Bash Supported
C Supported
C# Supported
C++ Supported
CSS Supported
HTML Supported
JavaScript Supported
Kotlin Supported
Kubernetes Supported
Objective-C Supported
PHP Supported
PowerShell Supported
Python Supported
R Supported
Ruby Supported
Rust Supported
SQL Supported
Solidity Supported
XML Supported

Integrations

.NET Supported
Bash Supported
C Supported
C# Supported
C++ Supported
CSS Supported
HTML Supported
JavaScript Supported
Kotlin Supported
Kubernetes Supported
Objective-C Supported
PHP Supported
PowerShell Supported
Python Supported
R Supported
Ruby Supported
Rust Supported
SQL Supported
Solidity Supported
XML Supported
Claim Composer 2.5 and update features and information
Claim Composer 2.5 and update features and information
Claim Muse Wonder and update features and information
Claim Muse Wonder and update features and information