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Pyyan / Compare / Muse Spark 1.2 vs Claude Fable 5

Muse Spark 1.2 vs Claude Fable 5

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Language Models · verified 13 Aug 2026

Muse Spark 1.2Metacurrent
Claude Fable 5Anthropiccurrent
3 slots left
SpecificationMuse Spark 1.2Claude Fable 5
SummaryMeta's first paid, closed model line.Most capable widely released model, for the hardest reasoning and long-horizon agentic work.
Context—1M
Input ($/Mtok)—$10
Output ($/Mtok)—$50
LicenceProprietaryProprietary
Max output—128K
ReleasedJul 2026—
Model ID—claude-fable-5
CategoryLanguage ModelsLanguage Models
OfficialMeta ↗Anthropic ↗

Highlighted rows are where these differ.

Muse Spark 1.2

Meta's first paid, closed model line.

Best for Meta ecosystem.

Full spec sheet →

Claude Fable 5

  • Thinking is always on — the `thinking` param is rejected
  • Raw chain of thought is never returned
  • Requires 30-day data retention; unavailable under ZDR

Best for the hardest problems.

Full spec sheet →