AI security startup Attestable completes $20M seed round, achieves ZK breakthrough

Huo Xing Cai Jing reports that on August 12, AI security startup Attestable officially launched and completed a $20 million seed round led by Jamin Ball of Altimeter Capital and Yonatan Mandelbaum of TLV Partners, with participation from Halcyon Futures, Cerca Partners, and several other investors. Attestable’s founder, Yogi, stated that as AI increasingly integrates into critical infrastructure, national security, and enterprise systems, verifying the trustworthiness of AI operations has become a global priority. The company aims to build a universal verification layer for cutting-edge AI labs, critical infrastructure, and national-level applications. Attestable leverages zero-knowledge proof (ZKP) technology to shift trust in AI systems from data centers to mathematical verification. This approach can prove that a specific output was generated by an approved model, model weights, input data, and execution policy—without exposing model parameters or user privacy data—and without requiring the model to be re-run. Attestable reports that its technology has already achieved verification inference for Meta’s Muse Glimmer 30B model on a single NVIDIA H100 GPU, reaching a speed of 85 tokens per second. The generated proofs are compact and quantum-resistant, enabling rapid verification. In response, Ethereum co-founder Vitalik Buterin published a post stating that this achievement signifies that the performance overhead of zero-knowledge proofs for large language models has now approached single-digit percentages. He noted that the next challenge is further reducing the computational cost of technologies such as fully homomorphic encryption (FHE).