Attestable Completes $20 Million Seed Round Financing, Vitalik Praises

AI integrity company Attestable announced the completion of a $20 million seed round financing and its official launch. This round was led by Jamin Ball of Altimeter Capital and Yonatan Mandelbaum of TLV Partners, with participation from Halcyon Futures, Cerca Partners, Zero Knowledge Ventures, and several individual investors. Attestable stated that it has resolved the previously deemed unfeasible core technological barrier of "practical zero-knowledge proofs," shifting the trust assumption from data centers to a small mathematical verifier. The data center can prove that the approved model, weights, inputs, and strategies produce the corresponding outputs, without disclosing model weights or private data, verifiable without a private key, and without needing to rerun the model. The team claims that on a single NVIDIA H100, its alpha version achieves a verification speed of 85 tokens per second for the Meta Muse Glimmer 30B model, with a brief proof process and post-quantum security.