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Pyyan / Compare / Claude Opus 5 vs Grok 4.6

Claude Opus 5 vs Grok 4.6

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Language Models · verified 13 Aug 2026

Claude Opus 5Anthropiccurrent
Grok 4.6xAIcurrent
3 slots left
SpecificationClaude Opus 5Grok 4.6
SummaryComplex agentic coding and enterprise work at half the cost of Fable 5.Newest xAI flagship.
Context1M500K
Input ($/Mtok)$5$2
Output ($/Mtok)$25$6
LicenceProprietaryProprietary
Max output128K—
Released24 Jul 202612 Aug 2026
Model IDclaude-opus-5grok-4.6
CategoryLanguage ModelsLanguage Models
OfficialAnthropic ↗xAI ↗

Highlighted rows are where these differ.

Claude Opus 5

  • Thinking on by default — a step change over Opus 4.8
  • 512-token prompt-cache minimum, down from 1024
  • Separate rate-limit bucket from the Opus 4.x pool

Best for agentic coding.

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 →