Leak: Meta's Fable-class Muse Wonder model rolls out at $4 in / $20 out per Mtok

thesaraharminta · x · 2026-10-13

Multiple credible leaks suggest Meta's long-rumored Fable-class model "Muse Wonder" is rolling out, priced at $4 input / $20 output per million tokens ($0.20 cached input) with 1M context. Screenshots describe it as an agentic model for coding and multi-step work: six reasoning levels, native tool calling, MCP support, long-task planning, sub-agent delegation, and error recovery. A max-reasoning "Muse Wonder Full" variant is exclusive to MuseCode Power and Maximum Usage subscription plans. The model has been in development for months with teasers from Meta staff; not yet officially confirmed.

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