Meta Finally Joins the Frontier: Muse Wonder and Muse Wonder Full Are Here
Meta has shipped its first frontier-scale models, Muse Wonder and Muse Wonder Full, with benchmark scores the company says are comparable to Fable 5.1 and GPT-6 Astra.
Meta's Superintelligence Lab released Muse Wonder and Muse Wonder Full on Monday, its first attempt at a frontier model after a year of avoiding state-of-the-art releases under Alexandr Wang's restructuring. The Wonder models are larger and more capable than the lightweight Muse Spark, with higher benchmark scores and better results on complex tasks such as coding. According to Meta's model card, Wonder and Wonder Full achieve comparable benchmark scores to Fable 5.1 and GPT-6 Astra.
Pricing reflects the scale. Through the Meta Model API, Wonder costs $4 per million input tokens and $20 per million output tokens, roughly equivalent to GPT-6 Sol or Opus 5.5. Wonder Full, however, will not be served through the API at all; it is available only to Muse Code subscribers. Both models will power the Muse agent.
The release emphasizes what Meta calls "active memory" — the ability to retain and synthesize user-provided information over long periods. Meta highlighted the MemoryBench benchmark, which challenges continual learning and memory construction frameworks, and says Muse Wonder now outscores Fable, Opus, and Astra on it. Research scientist Kavya Kopparapu framed the effort in the launch video: "We put a tremendous amount of effort into making sure your model can remember what's important to you over days, weeks, months, and beyond."
The models were trained at Meta's Prometheus data center in central Ohio, which came online earlier this year. This is the first frontier release since Scale AI founder Alexandr Wang restructured Meta's AI efforts in August of last year; since then Meta had shipped only Muse Spark and the Muse agent.