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Muse Wonder: Meta’s model for coding and long-running agents

Muse Wonder, launched by Meta on October 12, 2026, is a model for coding, long-running agents and computer use. It is available in Muse Code and on the Meta Model API for developers building agents. A stronger Muse Wonder Full is only in Muse Code’s Power and Maximum Usage plans.

Last checked · Announced · By Mishal Brands Editorial

Checked Nov 10, 2026. Everything below is what the company reports in its own announcement, linked at the bottom: Meta, “Put your ideas to work with Muse Wonder and Muse Wonder Full” (Oct 12, 2026). We have not tested it ourselves, and figures are the company’s own unless we say otherwise.

What it does and why it matters

Meta built the Muse Wonder series for multi-step coding and agent work: planning long tasks, calling tools in sequence, recovering from failures and delegating to sub-agents (Meta, Oct 12, 2026).

Two ideas stand out: active memory, which carries goals, constraints and earlier decisions across a long job, and active focus, which trains the model to try other approaches and ask before important actions.

Who it is for

  • Developers already using an OpenAI-compatible SDK who want to try another model.
  • Teams running long coding jobs in Muse Code.
  • Not aimed at everyday chat; see our Muse and Meta AI memory update for consumers.

Standout features

  • Muse Wonder on Muse Code and Meta Model API at $4/$20 per million tokens, which Meta says has comparable performance to Wonder Full.
  • Muse Wonder Full, Meta’s most advanced model, which Meta says tops DeepSWE and SWE-Marathon in independent third-party runs.
  • New Maximum Usage plan in Muse Code with 80x the Everyday Usage limit.
  • Multimodal reasoning over screenshots, charts, documents, images and video.
  • OpenAI-compatible API: change the base URL and set the model to muse-wonder-1.0.

How to start

  1. Generate an API key at dev.meta.ai.
  2. Point your OpenAI-compatible client at Meta Model API and set the model to muse-wonder-1.0.
  3. Or install Muse Code and pick a plan; Wonder Full needs Power or Maximum Usage.

Alternatives

Frequently asked questions

What is Muse Wonder?

Meta’s model series for coding, long-running agents and computer use, launched October 12, 2026 on Muse Code and the Meta Model API.

What is the difference between Muse Wonder and Muse Wonder Full?

Muse Wonder is on the API and Muse Code; Wonder Full is Meta’s most advanced model and is only available through Muse Code’s Power and Maximum Usage subscription plans.

How much does Muse Wonder cost?

Meta lists $4 per million input tokens and $20 per million output tokens on Muse Code and Meta Model API.

Pricing for Muse Wonder

Meta lists Muse Wonder at $4 per million input tokens and $20 per million output tokens (USD). Muse Wonder Full is only in Muse Code’s Power Usage and new Maximum Usage plans; Maximum Usage includes 80x the Everyday Usage limit with the same five-hour and weekly resets.

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Sources (checked Nov 10, 2026)

Disclosure: this page has no affiliate links. No company paid for or reviewed it. See our affiliate disclosure and how we review.

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