Meta · Language model

Muse Wonder

Meta's first frontier model, priced exactly like Claude Opus 5.5. It debuted at #2 on Arena's text leaderboard, but independent tests still put it behind Opus 5.5.

MakerMeta
ReleasedOctober 12, 2026
API price (per 1M tokens)$4 in / $20 out
Open weightsNo

Cached input $0.20. The stronger Muse Wonder Full is only available in Muse Code's $50 and $200 plans.

Best for

  • Conversation and writing
  • Long-context work (1M tokens)
  • Teams already on Meta's Model API

Strengths

  • #2 on Arena's text leaderboard at launch (1513, Max)
  • Scores 52 on the Artificial Analysis Intelligence Index; Wonder Full scores 56
  • Cheaper per task than Opus 5.5 in Artificial Analysis's testing

Watch out for

  • Same $4 / $20 price as Opus 5.5, which scores 58
  • Only #15 on Arena WebDev
  • Muse Code plans default to Contributor mode, which lets Meta train on your data

Ranking history

EditionPower RankingsCodingBest ValueOpen-Weight WatchImage GenerationVideo Generation
Week 45, 2026#8 (89)#9 (85)————
Week 44, 2026#5 (91)#7 (85)————
Week 43, 2026#5 (91)#7 (85)————

Head-to-head