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Claude Opus 5.5

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Hacker News | Sep 22, 2026 | throwaway371647

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We’re introducing Claude Opus 5. 5, the first model in our new Claude 5. 5 family. Opus 5. 5 requires less compute to serve than Opus 5, and its pricing reflects that. Opus 5. 5 communicates more naturally than prior models.

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