A private, browser-integrated AI assistant that prioritizes user anonymity.
Brave Leo is the AI chat assistant built directly into the Brave browser — no extension, no separate app. It runs on a mix of models, including Brave's own Ocelot model plus Claude, Llama, and Mixtral, and reads the content of whatever tab you have open to answer questions about it. Brave launched Leo in November 2023 as part of its broader privacy-first browser, built specifically to solve one problem: giving people an AI assistant without the usual trade-off of handing over browsing data or creating another account. Every response is generated without logging your IP address or storing your conversation afterward.
The single most common use is summarizing a page you're already reading — an article, a PDF, a Google Doc, or a YouTube video — without leaving the tab or copy-pasting anything into a separate chat window. Freelancers and solo founders use it to skim long research reports before a client call, condensing 20 pages into a few bullet points in seconds.
Beyond summarizing, people use Leo to translate text on a page into another language, to draft replies or short copy directly inside a text field on the page they're viewing, and to ask follow-up questions about content without switching tools. Some also use it as a lightweight coding helper for quick snippets and syntax questions, though it isn't built as a dedicated developer tool.
Reads the content of your active tab (webpage, PDF, Google Doc, etc.) and uses it as live context for your questions without needing copy-paste.
Choose between free-tier models (Llama, Claude Haiku) and Premium models (Claude Sonnet, Opus), or let the Automatic mode pick for you.
Connect Leo to a locally-running model through Ollama, an OpenAI-compatible endpoint, or another third-party API for full control.
Pulls real-time results and citations from Brave Search for time-sensitive questions, reducing hallucination tendencies.
Perfect for processing and summarizing dense, long-form content instantly without leaving the tab.
Excellent for skimming reports and prepping for meetings directly from a browser with zero friction.
Ideal for a zero-cost productivity boost, translation, and quick drafting without adding another monthly subscription.
Page summarization (web pages, PDFs, YouTube, Google Docs/Sheets), Leo Chat sidebar, full-page chat workspace, conversation search, inline search results, translation, text rewriting, image understanding, and Skills.
Model picker (Llama 3.1, Claude Haiku, Claude Sonnet, Claude Opus, Qwen, GLM, Mixtral), Automatic mode, Bring Your Own Model, and Brave Ocelot.
Agentic browsing (early access — lets Leo complete multi-step tasks in an isolated browser profile).
Free Plan: Full Leo chat access with Llama 3.1 8B, Claude Haiku, Qwen 3 14B, and GLM 4.7 Flash. No account, no credit card, and no usage tracking.
Leo Premium ($14.99/month): Unlocks Claude Sonnet 4.6, Claude Opus 4.6, Kimi K2.5, and DeepSeek v3.2, plus higher usage limits and faster responses. Covers up to five devices on one subscription.
Annual Billing: $149.99/year (saves roughly $30/year compared to paying monthly). Note: Leo has no memory across sessions, even on Premium — every conversation starts from zero.
ChatGPT's Free Tier — for quick, everyday tasks like summarizing an article, translating a paragraph, or answering a question about a page, Leo can replace tab-switching to another AI.
Claude Pro or ChatGPT Plus — Leo does not replace a paid AI subscription if you rely on frontier models for serious writing, research, or coding. Leo is positioned as a browser convenience rather than a primary AI workspace.
Dedicated Coding Assistants — while it can help with syntax, it shouldn't replace tools built specifically for developers.
If you're not currently paying for any AI tool, Leo is a genuine zero-cost addition rather than something you need to justify against an existing bill. However, keep in mind its documented habit of confidently inventing facts—always double-check its output.
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