Meta says its new AI catches up with rivals⁠.

Meta has released two new AI models, Muse Wonder and Muse Wonder Full, which it calls its most capable to date¹. It says they are built for agentic tasks, from navigating an insurance claim to making sense of a lease to building a working app¹. Meta describes Muse Wonder Full as having frontier capabilities, meaning it is among the most capable AI models in the world³. TechCrunch calls the release the company's first attempt at a frontier model⁴.

The comparisons rest on Meta's own testing⁴. According to its model card, Wonder and Wonder Full achieve benchmark scores comparable to Claude Fable 5.1 and GPT-6 Astra⁴. Meta says the largest version beats Claude Fable 5.1 and ranks just below Claude Opus 5.5 on the Artificial Analysis Intelligence Index, a widely used aggregate score³. It is unclear how the models compare with Google's Gemini 4 Argon².

Through the Meta Model API, Wonder will cost $4 per million input tokens and $20 per million output tokens, roughly the same as GPT-6 Sol or Opus 5.5⁴. Wonder Full will only be available to Muse Code subscribers and will not be served through the API⁴. Meta says Wonder will soon power more of its Muse personal agent, rolling out first to subscribers¹. It has not shared specifics or a timeline for that².

The pitch is aimed at long jobs. Meta says the models have Active Memory, the ability to carry what matters to you across conversations¹. They also have what it calls Active Focus, the ability to keep working towards a goal when a task gets hard, recover from errors and check in before doing anything important¹. The features are meant to keep the model locked on a stated goal, because a confused agent on a complex project can make expensive mistakes³.

Meta says it trained the models to avoid sharing private information without permission and to turn down requests to help with harmful acts¹. A full report with more safety evaluations will be available soon, it says¹. Meta did not disclose whether agents powered by Muse Wonder misbehaved in testing³. Mark Zuckerberg said last month that the company had delayed its Muse models to work on safety³.

One more supplier, not yet proven

For a UK business the practical news is that there is now another serious supplier of top end models, priced like the others. The reporting gives no British angle: nothing on UK availability, prices in pounds or what any UK regulator thinks. Treat all of that as unknown rather than assumed.

The awkward part is the evidence. Every ranking here is Meta marking its own homework, and the full safety report is not out yet. Memory that lasts for weeks is useful for an agent working on your accounts or your contracts, and it is also the first thing you would want to understand before you let it near them. If you are already trying agents, there is no reason to switch today. If you are choosing a supplier this quarter, put Muse Wonder on the list, ask what it remembers and where it keeps it, and wait for the safety report before it reads anything private.

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• Chip shares fall after Broadcom boss talks of a casino

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• IMF says an AI share crash threatens financial stability

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• Anthropic keeps experimental models offline over rogue behaviour

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