Brave Leo arrived in November 2023 as a sidebar AI assistant for the Brave browser, and it has grown into one of the more unusual offerings in the AI chat market. Unlike most platforms that treat privacy as an afterthought, Leo bakes it into the architecture: no IP logging, no conversation storage, and no requirement to create an account. In late 2025, Brave went further by introducing Trusted Execution Environments (TEEs) powered by NEAR.AI and Intel TDX technology, giving users cryptographically verifiable assurance that requests are processed exactly as described.
Two features set Leo apart from the field. The Bring Your Own Model (BYOM) option lets you connect Leo to locally-running models via Ollama or your own API endpoints, which is rare among browser-native AI tools. The Skills feature, launched in December 2025, lets you assign keyboard shortcuts to frequently used prompts to cut down on repetitive setup.
