Anthropic released FlashProve, an Apache 2.0 zkSNARK prototype that proves a reply came from a committed model without revealing weights. It proves Llama 4 Maverick at 110 tokens/second on 1 H100, with 19 MB proofs.
Read the original article:
Anthropic Releases FlashProve: Cryptographic Proofs That a Reply Came From Committed Weights
