From the source
Meta's Superintelligence Lab released Muse Wonder and Muse Wonder Full, its first frontier models, achieving benchmark scores comparable to Fable 5.1 and GPT-6 Astra.
The models emphasize 'active memory' for long-term user context retention, with Wonder priced at $4.00 per million input tokens and $20.00 per million output tokens via the Meta Model API.
Wonder Full is exclusive to Muse Code subscribers and not available through the API.