# Muse Code

Meta's terminal-native coding agent, now generally available, that plans, edits, and coordinates multi-agent engineering work with Muse Spark models.

- Company: Meta
- Category: Coding & Developer Tools
- Business model: Paid
- Availability: global
- Launched: 2026-08
- Tags: ai-coding, agent, cli, terminal
- Website: https://developer.meta.com/ai/products/muse-code/
- Canonical URL: https://globalaiproductindex.com/products/muse-code/
- Record updated: 2026-09-04

Muse Code is Meta's terminal-native coding agent, announced in August 2026 and taken out of beta at the end of that month. It runs locally on macOS and Linux, signs in with a Meta Model API account, and uses Meta's closed-weight Muse Spark models (including Muse Spark 1.3) for agentic coding. After leaving beta it added inter-session messaging, multi-agent workflows, rewind, a TypeScript SDK preview, and monthly subscription plans alongside pay-as-you-go API usage.

## Key features

- Terminal agent for macOS and Linux that edits files and runs commands
- Powered by Meta's Muse Spark model family, including Muse Spark 1.3
- Inter-session messaging, multi-agent workflows, and conversation rewind
- Developer-preview TypeScript SDK using the local Muse Session Protocol

## Use cases

- Implementing features and fixes from the terminal with a Meta-hosted model
- Coordinating parallel subagents on large engineering tasks
- Embedding Muse Code sessions in custom tools via the SDK

## Pricing

Muse Code is billed through Meta Model API usage, with monthly subscription plans that include more affordable Muse Spark usage than pay-as-you-go pricing.

## FAQ

**Who develops Muse Code?**

Muse Code is developed by Meta and is part of Meta's developer AI products alongside the Meta Model API.

**Is Muse Code still in beta?**

No. Meta took Muse Code out of beta on 31 August 2026, adding workflows, rewind, an SDK preview, and subscription plans.

**What model does Muse Code use?**

Muse Code is powered by Meta's closed-weight Muse Spark models, including Muse Spark 1.3, accessed through the Meta Model API.

## Sources

- [Official website](https://developer.meta.com/ai/products/muse-code/)
- [Muse Code: New plans and features (Meta)](https://developer.meta.com/ai/resources/blog/muse-code-new-plans-and-features/)

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Data from the [Global AI Product Index](https://globalaiproductindex.com/), licensed CC BY 4.0.