Claude docs say thinking content is encrypted, raising a distillation problem

zainhas · x · 2026-07-25

Anthropic’s Claude Platform docs show that full thinking content is encrypted and returned in each thinking block’s signature field, and the API uses that signature to verify the blocks when they are sent back.

The post then raises a practical question for distillation: if reasoning traces are encrypted rather than exposed directly, how should one train a student model or otherwise distill from them effectively?

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