Muse Code is Meta's beta terminal coding agent and runtime. It can plan tasks, write and validate code, coordinate background agents, and record activity in a local event log.

Is Muse Code the same as Muse Spark 1.2?

No. Muse Code is the agent and runtime that manages tools, goals, state, approvals, and sessions. Muse Spark 1.2 is the coding-focused model that generates outputs for the agent loop.

What platforms does Muse Code support?

Meta's research announcement lists macOS and Linux. The guide does not confirm native Windows support.

How is Muse Code installed?

Meta publishes a one-line installer using curl and bash. Users should verify the official domain, review current requirements and authentication terms, inspect the installation source, and test in a non-critical repository.

What is the context window of Muse Spark 1.2?

Meta says Muse Spark 1.2 supports a context window of up to 1 million tokens.

How much does Muse Spark 1.2 cost?

As checked on August 6, 2026, Meta lists standard API pricing of $0.15 per million cached input tokens, $1.25 per million input tokens, and $4.25 per million output tokens. Reasoning tokens are billed as output.

Can Muse Code use subagents?

Yes. Meta describes persistent background agents and a fan-out mode in which write-capable child agents can work in isolated Git worktrees.

Can Muse Code resume after a crash?

Meta says its append-only local event log supports replay-exact, restart-safe sessions that can continue from the last recorded step. The guide has not independently stress-tested this recovery behavior.

Are Muse Code benchmark results independently verified?

The guide does not independently verify Meta's benchmark results. It explains that scores depend on the model, harness, effort setting, environment, date, and cost, and should not replace testing on a real repository.

Muse code: Independent guide to Meta's terminal coding agent and coding model

Name: Muse code
Rating: 5 (95 reviews)
Author: toolify

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Introduction:

Independent guide to Meta's terminal coding agent and coding model

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Aug 06 2026

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Muse code Product Information

What is Muse code?

Muse Code is an independent reference guide to Meta's beta terminal coding agent and Muse Spark 1.2 model. The website explains the distinction between the agent runtime and its underlying model, including persistent agents, local event logs, restart recovery, isolated worktrees, installation, pricing, model limits, evaluation claims, and community feedback. It also provides source-linked information about Meta's launch announcements, API access, model IDs, context limits, and reported benchmarks.

How to use Muse code?

Browse the overview to understand Muse Code, review the Muse Spark 1.2 model and pricing details, follow the linked official installation guidance, and consult the source ledger and methodology pages to distinguish confirmed Meta claims from independent interpretation and community anecdotes.

Muse code's Core Features

Source-traceable documentation of Muse Code and Muse Spark 1.2

Explanations of persistent agents, event logs, approvals, and isolated worktrees

Pricing, model ID, context-window, access, and Contributor-tier information

Evaluation caveats and methodology guidance

Installation guidance for macOS and Linux

Muse code's Use Cases

Research whether Muse Code is suitable for terminal-based software development

Compare Muse Code's agent runtime with the Muse Spark 1.2 model

Review API pricing and Contributor access terms before adoption

Plan a controlled coding-agent evaluation on a real multi-file repository

Investigate persistent-agent recovery, event logs, and isolated worktree workflows

FAQ from Muse code

What is Muse Code?
Is Muse Code the same as Muse Spark 1.2?
What platforms does Muse Code support?
How is Muse Code installed?
What is the context window of Muse Spark 1.2?
How much does Muse Spark 1.2 cost?
What is the Contributor model?
Can Muse Code use subagents?
Can Muse Code resume after a crash?
Are Muse Code benchmark results independently verified?

Muse code Reddit

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Muse code Reddit

Muse code Reddit Link: https://www.reddit.com/r/opencodeCLI