Muse

Muse

Microsoft
+
+

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About

Muse Code is Meta’s terminal coding agent, powered by Muse Spark 1.2, for handling complex software engineering tasks across large repositories. The agent can plan changes, write code, validate results, and coordinate multiple persistent subagents during development sessions. Muse Code uses async background agents that stay active throughout a session to reduce repeated information gathering and help complete multi-step tasks with less steering. Its runtime uses a local event log that records model calls, tool runs, approvals, and edits so sessions can be replayed and resumed after failures. Muse Code includes bundled skills such as /plan for approval-gated planning, /grill for stress-testing plans, and /goal for working toward completion. Built for AI developers and software teams, Muse Code helps automate coding workflows, long-running engineering tasks, debugging, and repository-level development.

About

Microsoft has unveiled Muse, a groundbreaking generative AI model designed to revolutionize gameplay ideation. Developed in collaboration with Ninja Theory, Muse is a World and Human Action Model (WHAM) trained on data from the game Bleeding Edge. This AI model possesses a comprehensive understanding of 3D game environments, including physics and player interactions, enabling it to generate consistent and diverse gameplay sequences. Muse can produce game visuals and predict controller actions, facilitating rapid prototyping and creative exploration for game developers. By analyzing over 1 billion images and actions, Muse demonstrates the potential to assist in game preservation by recreating classic titles for modern platforms. While still in the early stages, with current outputs at a resolution of 300×180 pixels, Muse represents a significant advancement in integrating AI into the game development process, aiming to enhance, not replace, human creativity.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not 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 engineers, AI developers, coding agent users, platform teams, DevOps teams, ML engineers, research teams, enterprise development teams, and organizations that need terminal coding agents, repository automation, code generation, debugging, validation, persistent subagents, replay-safe execution, long-running coding workflows, and end-to-end software development support

Audience

Game developers wanting a tool to streamline prototyping and explore new gameplay concepts through AI-generated sequences

Support

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

Support

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

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$1.25 per 1M tokens (input)
Standard pricing: $1.25 per million input tokens and $4.25 per million output tokens

Discounted "contributor" tier costing $0.10 per million input tokens and $0.20 per million output tokens for users who agree to share feedback to improve the AI.
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 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

  • Muse Code looks exciting because Meta is finally going after coding agents directly, not just releasing another general AI model. A terminal-based agent that can write code, inspect software, run tests, and validate changes is exactly the kind of workflow developers actually care about. The pricing angle is a big deal. Meta is pitching Muse Code as one of the more affordable coding agents, with a lower-cost tier that is reportedly less than one-tenth the cost of its general Muse Spark model. That matters if you use coding agents all day instead of just for the occasional refactor. I also like that it is powered by Muse Spark 1.2, which sounds more focused on software engineering than earlier Muse Spark releases. If Meta can make the agent reliable inside real repos, Muse Code could become a serious daily tool.

Cons

  • It is still in beta, so I would not trust it blindly yet. Coding agents need to prove themselves on messy codebases, failing tests, weird dependencies, security-sensitive changes, and long multi-step tasks. I would also want to see more independent developer feedback. Meta’s pricing and positioning are interesting, but the real test is whether Muse Code can consistently make good changes without wasting time or creating cleanup work.

Training

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

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported

Company Information

Meta
Founded: 2004
United States
meta.ai

Company Information

Microsoft
Founded: 1975
United States
microsoft.com

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

Unity Muse

Unity Muse

Unity Technologies
Hermes Agent

Hermes Agent

Nous Research

Categories

Categories

AI Game Generators Supported
AI Models Supported

Integrations

Claude Fable 5.1 Not Supported
Claude Haiku 5.5 Not Supported
Claude Mythos 5 Not Supported
Claude Opus 5 Not Supported
Claude Opus 5.5 Not Supported
GPT-5.4 mini Not Supported
GPT-5.4 nano Not Supported
GPT-5.6 Sol Ultrafast Not Supported
GPT-5.6 Terra Not Supported
GPT-6 Astra Not Supported
GPT-6 Luna Not Supported
GPT-6.1 Sol Not Supported
Holo4 Not Supported
Hugging Face Not Supported
Meta AI Supported
Microsoft Foundry Not Supported
Muse Glimmer Supported
Muse Spark Supported
Muse Spark 1.2 Supported
Muse Spark 1.3 Supported

Integrations

Claude Fable 5.1 Supported
Claude Haiku 5.5 Supported
Claude Mythos 5 Supported
Claude Opus 5 Supported
Claude Opus 5.5 Supported
GPT-5.4 mini Supported
GPT-5.4 nano Supported
GPT-5.6 Sol Ultrafast Supported
GPT-5.6 Terra Supported
GPT-6 Astra Supported
GPT-6 Luna Supported
GPT-6.1 Sol Supported
Holo4 Supported
Hugging Face Supported
Meta AI Not Supported
Microsoft Foundry Supported
Muse Glimmer Not Supported
Muse Spark Not Supported
Muse Spark 1.2 Not Supported
Muse Spark 1.3 Not Supported
Claim Muse Code and update features and information
Claim Muse Code and update features and information
Claim Muse and update features and information
Claim Muse and update features and information