Anthropic releases FlashProve, a cryptographic prototype to verify which model produced a response
This story is from 2026-11-03. It is preserved in the archive; the latest stories are on the live feed.
Anthropic published FlashProve, an open-source Apache 2.0 research prototype using zkSNARK proofs to verify that a response came from the claimed model without exposing weights, with reported overheads of 70-95x vLLM GPU time and a 1,024-token cap.
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Timeline · 5 reports
- 2026-11-05 00:34 · DEV Community — Machine Learning
Anthropic's FlashProve: what 72x overhead and a 1,024-token cap mean for proving which model answered you - 2026-11-04 15:58 · r/artificial
Anthropic’s FlashProve could prove an AI provider used the model you paid for without exposing its weights - 2026-11-04 15:23 · The Decoder
Anthropic's new prototype proves which model wrote an AI response without exposing its weights - 2026-11-04 03:38 · DEV Community — AI
Anthropic FlashProve proves which model answered with a zkSNARK proof - 2026-11-03 23:01 · DEV Community — AI
Anthropic's FlashProve Proves Which Model Answered You, at 70-95x vLLM's GPU Time