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Pyyan / Compare / Claude Fable 5 vs Grok 4.6

Claude Fable 5 vs Grok 4.6

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Language Models · verified 13 Aug 2026

Claude Fable 5Anthropiccurrent
Grok 4.6xAIcurrent
3 slots left
SpecificationClaude Fable 5Grok 4.6
SummaryMost capable widely released model, for the hardest reasoning and long-horizon agentic work.Newest xAI flagship.
Context1M500K
Input ($/Mtok)$10$2
Output ($/Mtok)$50$6
LicenceProprietaryProprietary
Max output128K—
Released—12 Aug 2026
Model IDclaude-fable-5grok-4.6
CategoryLanguage ModelsLanguage Models
OfficialAnthropic ↗xAI ↗

Highlighted rows are where these differ.

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 →

Grok 4.6

  • Tiered pricing: doubles above 200K tokens
  • Smaller context than Grok 4.3 despite being newer

Best for cost-sensitive scale.

Full spec sheet →