Brave Leo (Bring Your Own Model)

Brave Leo is an AI assistant inside the Brave browser for people who want help with what they're reading. Bring Your Own Model support lets you use a local LLM or a remote model for browser conversations.

• Page and document questions: Summarize webpages, analyze PDFs, and ask questions about Google Docs and Google Sheets.
• Writing and coding: Draft articles or emails, translate text, and get suggested code or database queries.
• Tab organization: Find tabs about a topic and collect them in a new window.
• Conversation history: Save chats on your device, return to them later, or use temporary chats that disappear when closed; Leo can also remember preferences across conversations.
• Current information: Leo uses Brave Search to supplement answers with information from the web.

You can connect your own local or remote models and third-party APIs. Brave also offers hosted models from Mixtral, Anthropic's Claude and Meta's Llama. Hosted processing sends your prompt, conversation context and relevant page content to the servers answering it. Brave says it doesn't retain those conversations or use them for model training.

Leo is available on macOS, Windows, Linux, Android and iOS. The basic experience is free and doesn't require an account; a paid offering is also available. The Brave browser is open source under Mozilla Public License 2.0. On iOS, Leo accepts voice-to-text questions.