
Anthropic's FlashProve Cryptographically Proves Which AI Model Answered You
Anthropic released FlashProve , open-source cryptographic proofs that a response came from a specific LLM. Generates proofs for 400B Llama 4 Maverick at 110 tokens/second on a single H100 GPU. Proofs are ~19 MB and verifiable in seconds on an ordinary 24-core CPU without weights.





















