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Muse Wonder and Muse Wonder Full

Meta launched Muse Wonder and Muse Wonder Full, its most capable models so far, aimed at personal and professional agents and available through paid Muse plans and the Meta Model API.

Meta says the two models are its largest and most capable yet. They add Active Memory, which remembers user preferences across chats, and Active Focus, a loop that keeps trying other approaches when a task fails. Muse Wonder is in the Meta Model API and Muse Code. Muse Wonder Full is for Muse Code subscribers.

Date
Monday 12 October 2026
Lab
Meta
Kind
model
Access
closed API
Price
Muse app plans $20 or $100 per month; Muse Code plans $50 or $200 per month; one report puts API input at $4 per million tokens, the same as Claude Opus 5.5

Figures

MeasureValueMeasured by
Artificial Analysis Intelligence Index rank for Muse Wonder Fullsecond, behind Claude Opus 5.5 only
Ahead of Claude Fable 5.1, GPT-6 Astra and Gemini 4 Argon, as reported by Digital Trends. A third-party article puts it six points behind Opus 5.5.
Artificial Analysis

Meta's post gives no benchmark scores or prices. Those come from press coverage. The codename was reported as Watermelon. Weights were not mentioned.

Sources

  1. about.fb.com/news/2026/10/introducing-muse-wonder-models/
  2. digitaltrends.com/computing/meta-goes-toe-to-toe-with-the-big-boys-with-muse-wonder-ai-mod
  3. news.ssbcrack.com/meta-launches-ai-model-muse-wonder-with-subscription-plans-for-enhanced-
  4. pasqualepillitteri.it/en/news/23176/muse-wonder-launches-opus-5-5-prices-trails-benchmarks

This record was partly confirmed: some claims could not be checked on 12 October 2026. How we check

Read the daily brief for 12 October 2026