Muse Wonder: Meta's new model for Muse remembers across chats and keeps going on hard tasks

1 hour ago

Muse Wonder and Muse Wonder Full are Meta's new models for agents. Muse Wonder remembers what matters across conversations, keeps going when a task gets hard, and is coming to the Muse app soon, subscribers first. Developers can use it today in the Meta Model API and Muse Code. https://about.fb.com/news/2026/10/introducing-muse-wonder-models/ https://research.meta.ai/blog/muse-wonder

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Chapters

  1. 0:00Muse Wonder is Meta's most capable model, built for agents
  2. 0:11Muse Wonder remembers what matters across conversations
  3. 0:25When a task gets hard, Muse Wonder keeps going
  4. 0:39Muse Wonder works through a lease, a claim, or your finances
  5. 0:51Muse Wonder Full leads on long coding projects
  6. 1:05Developers can use Muse Wonder today
  7. 1:16Muse Wonder shares private details only with your permission
  8. 1:33In the Muse app, Muse Wonder arrives soon, subscribers first
Show transcript

Muse Wonder is Meta's most capable model, built for agents

Muse Wonder is Meta's most capable model, built for agents

Two new models. Muse Wonder is the one coming to the Muse app.

Meta Newsroom · “Introducing Muse Wonder and Muse Wonder Full” · Oct 12, 2026

Meta has two new models built for agents, Muse Wonder and Muse Wonder Full. They're Meta's most capable models so far, and Muse Wonder is the one coming to the Muse app.

Muse Wonder remembers what matters across conversations

Active Memory brings back the details a task needs.

MemoryBench bar chart: Muse Wonder 85.6%, Muse Wonder Full 85.5%, Claude Opus 5.5 81.5%, GPT-6 Astra 81.4%, Claude Fable 5.1 79.0%
Meta AI Research · “Muse Wonder” · research.meta.ai · Oct 12, 2026

With Active Memory, Muse Wonder carries what matters to you from one conversation to the next. On a test of remembering a long history, both Wonder models beat Claude Opus 5.5 and GPT-6 Astra.

When a task gets hard, Muse Wonder keeps going

Active Focus tries other approaches, and checks in before anything important.

Meta Newsroom · “Introducing Muse Wonder and Muse Wonder Full” · Oct 12, 2026

Active Focus is the second new ability. When a task gets hard, Muse Wonder tries other approaches and recovers from errors. It asks when something is unclear, and checks in before anything important.

Muse Wonder works through a lease, a claim, or your finances

Built for expert work in law, finance and health.

Meta Newsroom · “Introducing Muse Wonder and Muse Wonder Full” · Oct 12, 2026

Both models are built for expert work in law, finance and health. That covers jobs like navigating an insurance claim, understanding a lease, or making sense of someone's finances.

Muse Wonder Full leads on long coding projects

From a game to an app for a new business.

SWE-Marathon bar chart: Muse Wonder Full 57.5%, Muse Wonder 53.1%, Claude Opus 5.5 46.3%, Claude Fable 5.1 45.6%, GPT-6 Astra 42.5%
Meta AI Research · “Muse Wonder” · research.meta.ai · Oct 12, 2026

Both models write code, from a game to an app for a new business. On long software projects, Muse Wonder Full gets furthest, ahead of Claude Opus 5.5, Claude Fable 5.1 and GPT-6 Astra.

Developers can use Muse Wonder today

In the Meta Model API and Muse Code. Muse Wonder Full is for Muse Code subscribers.

Meta AI Research · “Muse Wonder” · research.meta.ai · Oct 12, 2026

Developers can use Muse Wonder today, through the Meta Model API and the Muse Code coding agent. Muse Wonder Full is available today too, for Muse Code subscribers.

Muse Wonder shares private details only with your permission

It mishandles personal information less often than GPT-6 Astra or Claude Fable 5.1.

Mishandling Personal Information, lower is better: Muse Wonder Full 2.2%, Muse Wonder 3.4%, GPT-6 Astra 4.6%, Claude Fable 5.1 6.8%
Meta AI Research · “Muse Wonder” · research.meta.ai · Oct 12, 2026

An agent works across your messages, calendar and documents, so Muse Wonder is trained to share private information only with your permission. It mishandles personal information less often than GPT-6 Astra or Claude Fable 5.1.

In the Muse app, Muse Wonder arrives soon, subscribers first

The full safety report is still to come. Full results: the Muse Wonder post on research.meta.ai.

Meta Newsroom · “Introducing Muse Wonder and Muse Wonder Full” · Oct 12, 2026

In the Muse app, Muse Wonder will soon power more of Muse, rolling out to subscribers first. The full safety report is still to come. Every result is in the Muse Wonder research post.