Leo
Brave Leo is an AI assistant built directly into the Brave browser. It is available for testing and feedback in the Nightly desktop channel...
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What is Leo?
Brave Leo is a browser-native AI assistant built directly into the Brave browser for desktop (macOS, Windows, Linux) and mobile (Android, iOS). It allows users to interact with webpages they're visiting without leaving the page itself—asking for video transcripts, interactive article summaries, follow-up questions, content augmentation, and reading comprehension help. Leo can summarize webpages, docs, or PDFs; answer general questions with answers, summaries, clarifications, related information, and other viewpoints; create content like articles, essays, and emails; translate between languages; and offer coding help with suggested and sample code for software applications and database queries.
Leo is hosted by Brave without third-party AI services, with all models (including Claude) hosted through Brave's own secure infrastructure. It emphasizes unparalleled privacy: chats are private, anonymous, and secure; Leo doesn't record chats or use them for model training; no account or login is required for the free version; conversations are discarded immediately after replies are generated and not persisted on Brave's servers; and no personal data like IP addresses is retained.
The tool is for anyone using the Brave browser who wants AI assistance integrated directly into their browsing experience—whether summarizing content, generating text, translating, coding, or having casual conversations. Users can access Leo by typing in the address bar and choosing
Leo pricing
Pricing model: Free
Brave Leo is free to use with no account required. Leo Premium is available for $14.99/month (or $149.99 annually), providing higher rate limits, access to more powerful models with enhanced reasoning capabilities and more nuanced responses, better handling of complex tasks, and faster responses. One Premium subscription covers up to 5 different devices across Android, Linux, macOS, and Windows. Both free and Premium versions offer access to latest models from Mixtral, Anthropic's Claude, and Meta's Llama, though Premium gets larger models like Llama 2 70B and Code Llama 70B.
Leo pros
- Built directly into Brave browser—no extra apps or extensions needed
- Free to use with no account or login required
- Unparalleled privacy: chats not recorded, stored, or used for training
- No IP address or personal data retained by Brave
- Access to latest models from Mixtral, Anthropic's Claude, and Meta's Llama
- Summarize webpages, PDFs, docs, and videos without leaving the tab
- Create content like articles, essays, emails, and poems
- Translate between different languages
- Coding help with suggested and sample code for applications and database queries
- Tab Focus Mode for context-aware requests about current webpage
- Bring Your Own Model (BYOM) feature for local/remote models or third-party APIs
- Chat history stored locally on device for review or continuation
- Temporary chats option that don't log in history
- Voice-to-text question asking on iOS without typing
- Analyzes PDFs, Google Docs, and Google Sheets faster
- Higher rate limits with Leo Premium subscription
- One subscription covers up to 5 devices across Android, Linux, macOS, Windows
- Automatic model selection mode or manual model switching
- Settings accessible via Settings → Leo or three-dot menu in chat box
Leo cons
- Only available in Brave browser—not a standalone app
- No access to live/current information in current version
- Responses may contain factual inaccuracies or misleading information
- Leo hallucinates like all LLMs—responses need double-checking
- Bias from training data may occasionally reflect in outputs
- No way to review or delete past conversations since they aren't stored
- Free tier has usage rate limits that may restrict accessibility
- Leo Premium requires creating a Premium account for subscription verification
- Model availability varies—need to open Leo to see current versions
- Product not active until user explicitly opts in first time
Frequently asked questions about Leo
What can Brave Leo do?
Ask Leo to summarize a webpage, doc, or PDF. Ask almost any question in general and get answers, summaries, clarifications, related information, and other viewpoints. Brave Leo can create content like articles, essays, and emails. It can translate between different languages and offer coding help by providing suggested and sample code for software applications and database queries. On iOS, you can also ask Leo questions via voice-to-text without typing.
What LLMs does Leo have access to?
Both free and Premium versions offer access to the latest models from Mixtral, Anthropic's Claude, and Meta's Llama. Specifically, free users get basic versions of Llama 2 and Claude models, while Premium users access larger models like Llama 2 70B, Code Llama 70B, and Anthropic Claude Instant. Open Brave Leo to see exactly which model versions are available today. Users can switch between models manually via the model selection menu or use Automatic mode.
Can I use my own models in Leo?
Yes, you can use your own models in Brave Leo with a feature called Bring Your Own Model (BYOM). This lets you connect to your own local or remote models, use third-party APIs, and maintain full control over your AI interactions while maintaining Brave's privacy commitment. Check out the BYOM help center guide to learn more about using local or remote models or connecting to third-party APIs.
What data does the Brave browser send to Leo servers?
The browser shares your latest prompt, the context of your current conversation, and—when the use case requires it—the necessary context from the page you're viewing (e.g., article text or YouTube video transcript). Brave does not collect identifiers that can be linked to you such as IP Address, and no personal data is retained. All AI models including Claude are hosted through Brave's own secure infrastructure, ensuring interactions remain within Brave's privacy-preserving environment.
Does Brave Leo have a daily limit on prompts?
Brave Leo may be more or less accessible depending on traffic levels and usage. The free tier has usage rate limits. You can subscribe to Brave Leo Premium to get higher usage limits, which also provides access to more powerful models and faster responses.
Do I need a Brave account to use Leo?
No account or signup is required to access the free Brave Leo experience. Leo Premium subscribers will have to create a Premium account, but this is only to verify premium access. There is no Leo account per se, and the premium experience remains private. Your premium account is completely unlinkable to any usage of Leo itself, with unlinkable tokens issued that validate subscription when using Leo.
Will Brave use my conversations for model training?
No. Your conversations are not persisted for model training. Leo doesn't record chats or use them for additional model training. Conversations are discarded immediately after the reply is generated and aren't stored on Brave's servers. No personal data such as conversation transcripts are retained by Brave.
Can I trust Leo's replies and does it hallucinate?
As with any AI, Leo's responses may contain misleading information and factual inaccuracies. Bias and harmful content from training data may occasionally reflect in outputs. Yes, Leo does hallucinate—hallucinations are an intrinsic challenge in how LLMs work. Sometimes regenerating the answer may help. Always double-check Leo's responses for accuracy before quoting them (for example, try the same query on Brave Search). Provide feedback if you see concerning content by clicking the menu next to Leo's response and selecting the best option.