Brave's Leo assistant now offers Z.ai's GLM 5.3 Flash model running in a trusted execution environment (TEE) with end-to-end encryption, according to the source report.
Requests are routed using Oblivious HTTP, which keeps the user's identity separate from the content.
Source: theregister.com, reported 10-16. https://www.theregister.com/ai-and-ml/2026/10/16/want-your-ai-chats-to-stay-private-brave-tees-up-end-to-end-encryption/5303462