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Claude Opus 5.5: price, context window and licence

Same list rate as Meta's Muse Wonder; roughly twice the blended cost of GPT-6 Sol or Sonnet 5.5.

Input$4 per million tokens
Output$20 per million tokens
Context window—
Licenceproprietary
VendorAnthropic
Released

Where these figures come from

Reported in Independent tests put Opus 5.5 ahead of Meta's Muse Wonder, which cites Anthropic's own published pricing. Rates last checked 30 Oct 2026; if Anthropic has changed them since, that report's source link is where to confirm.

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