Anthropic open-sources FlashProve, a more efficient method for verifying which AI model produced a response

Anthropic has introduced FlashProve, a system for provable inference that lets developers cryptographically verify whether a specific response was generated by a particular AI model. The company says it is substantially more efficient than prior open-source approaches. Stated applications include making chat hijacking harder and letting safety evaluators confirm the model they test matches the one served to customers. Anthropic is open-sourcing the code and published a full write-up, crediting collaborators including Alessandro Chiesa, Giacomo Fenzi, Rahul Dalal and Ben Mayer.

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