AI
Anthropic's FlashProve can prove which AI model wrote a reply, at roughly 70–95x the cost of normal inference
Anthropic has open-sourced FlashProve, a research prototype that produces cryptographic proofs that a specific model generated a specific answer, without revealing the weights. It works on a 400B-parameter open model on one H100, but it costs about 70–95 times more GPU time than serving the model, and nobody has said they will deploy it.