Meta releases its first frontier models, Muse Wonder and Muse Wonder Full

Meta's Superintelligence Lab released two new models on Monday 12 October 2026, Muse Wonder and Muse Wonder Full, which TechCrunch describes as the company's first attempt at a frontier model. According to Meta's own testing in the model card, the two models reach benchmark scores comparable to Fable 5.1 and GPT-6 Astra, and Meta says Muse Wonder scores higher than Fable, Opus or Astra on MemoryBench, a benchmark for continual learning and memory. Meta puts particular emphasis on what it calls "active memory", the ability to retain and synthesise what a user tells it over time. Muse Wonder is available through the Meta Model API at $4 per million input tokens and $20 per million output tokens, which TechCrunch notes is roughly in line with GPT-6 Sol or Opus 5.5. Muse Wonder Full will not be served through the API and will be limited to Muse Code subscribers. Both models will also power the Muse agent. Meta says the models were trained at its Prometheus data center in Ohio. The benchmark claims are Meta's own and have not been independently verified.