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

About Muse Code

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.

Pricing

Starting Price:
$1.25 per 1M tokens (input)
Pricing Details:
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:
Free Version available.

Integrations

API:
Yes, Muse Code offers API access

Ratings/Reviews - 1 User Review

Overall 5.0 / 5
ease 5.0 / 5

Company Information

Meta
Founded: 2004
United States
meta.ai

Videos and Screen Captures

Muse Code Screenshot 1
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Product Details

Platforms Supported
Mac
Linux
Training
Documentation
Support
Online

Muse Code Frequently Asked Questions

Q: What kinds of users and organization types does Muse Code work with?
Q: What languages does Muse Code support in their product?
Q: What kind of support options does Muse Code offer?
Q: What other applications or services does Muse Code integrate with?
Q: Does Muse Code have an API?
Q: What type of training does Muse Code provide?
Q: How much does Muse Code cost?

Muse Code Product Features

Muse Code Verified User Reviews

Write a Review
  • A Muse Code User
    AI Developer
    Used the software for: Less than 6 months
    Frequency of Use: Daily
    User Role: User
    Company Size: 100 - 499
    Ease
    Pricing
    Probability You Would Recommend?
    1 2 3 4 5 6 7 8 9 10

    "Great Terminal AI Coding agent"

    Posted 2026-08-05

    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.

    Overall: Muse Code feels like Meta’s most serious move yet into AI coding agents, and the lower-cost positioning makes it especially interesting. I would still keep it supervised, review every diff, and run tests carefully. But if it performs well in real-world projects, Muse Code could become a very practical coding agent for developers who want strong AI help without premium-agent pricing.

    Read More...
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