Brave Leo is the AI assistant built into the Brave browser. It can chat with the page you are on, summarise and translate, analyse PDFs and Google Docs or Sheets, use Brave Search for current answers and run your own local or remote models, with Brave stating it does not retain chats or train on them.
Browser AI assistants are useful, but many send everything you read to a third party and tie it to an account. Brave Leo is the privacy-focused alternative built directly into the Brave browser.
Leo can chat with the page you are on, summarise, translate and analyse PDFs and Google Docs or Sheets, use Brave Search for up-to-date answers, organise tabs and even run your own local or remote models, with Brave stating that chats are not retained or used for training. It is the built-in counterpart to extension-based assistants like MaxAI.
This review covers what Brave Leo can do in a tab, who it is a good fit for, how its free and premium versions differ, and when its built-in models fall short.
Brave Leo's appeal is convenience without the usual privacy trade-off. Because it is part of the browser, you can open it from the toolbar or the address bar and ask about whatever tab you are reading, without copying text into a separate service.
Its privacy stance is central. Brave says Leo does not retain or share chats, does not use them for model training and requires no account or login, and it offers temporary chats that are not saved and local chat history kept on your device.
Leo also connects to Brave Search, Brave's independent search engine, to enrich answers with current information, and it can analyse PDFs, Google Docs and Sheets to pull out what you need faster.
For people who want more control, Leo supports bringing your own models, either running locally on your machine or connecting to a remote endpoint, which keeps sensitive work under your own setup.
The honest framing is that Leo is one of the more privacy-respecting ways to use AI while browsing, but it only works in Brave, its built-in model choice and limits are narrower than some dedicated assistants, and privacy claims should be read in Brave's own policies.
Brave Leo is one of the more privacy-respecting ways to use AI while browsing, but it only works in Brave.
Leo combines in-tab assistance with privacy controls and model choice.
You can ask Leo to summarise a webpage, answer questions about it, translate, generate or analyse text, and work through PDFs, Google Docs and Sheets. It can also help organise tabs by topic and set remembered preferences that make answers more tailored.
For private, anonymised chat outside a specific browser, Duck.ai offers a similar privacy-minded approach on the web; Leo's advantage is deep integration with your tabs.
Brave states that Leo does not retain or share chats or use them for training, and offers temporary chats and on-device history. You can also run your own models locally or connect a remote endpoint for more control.
If you mainly want cited, research-style answers, an answer engine like Perplexity AI specialises in that, while Leo is a general assistant inside the browser.
Brave Leo is a good fit for privacy-minded people who want AI help while browsing without sending their reading history and chats into an account-linked service.
It suits existing Brave users, who get an assistant at no extra cost, and technically inclined users who like running local models for sensitive work.
It suits researchers and students who read a lot online and want quick summaries and document analysis, provided they verify important details, since any assistant can misread or oversimplify.
It is a weaker fit for people committed to another browser, since Leo is a Brave feature, and for power users who need the very largest models or heavy usage, who may need premium or a dedicated assistant.
Organisations should check whether Brave's policies and controls meet their requirements before standardising on it for work.
Brave Leo is free to use, with a premium tier that adds access to more models and higher usage limits. We do not publish prices, which change; check Brave's site.
For most casual users, the free version will cover summaries and quick questions; heavy users and people who want specific premium models may find the upgrade worthwhile.
Running your own local model can be cost-free beyond your hardware, which is attractive for privacy, though local models may be less capable than the largest hosted ones.
The sensible approach is to use the free version for a week of real browsing, note where it falls short, and then decide whether premium or bring-your-own models fill those gaps.
Because Leo lives in your browser, trial it on your real tabs and documents for a week.
| What it is | The AI assistant built into the Brave browser |
|---|---|
| Tab chat | Summarise, ask, translate and analyse the current page |
| Documents | PDFs, Google Docs and Google Sheets |
| Search | Brave Search grounding for current information |
| Privacy | No retention or sharing of chats, no training use (Brave-stated) |
| Models | Built-in models plus bring-your-own local or remote models |
| Extras | Temporary chats, memory preferences, tab organisation |
| Access | Free, with a premium tier |
Tab chat and summaries
Translation
PDF and Google Docs analysis
Brave Search grounding
No-retention privacy
Bring-your-own models
Temporary chats
Tab organisation
The useful comparison is with other ways to get AI help while browsing.
| Tool | Tool | Approach | Best for |
|---|---|---|---|
| Brave Leo | Built into the Brave browser | Private tab chat, BYO models | Privacy-minded Brave users |
| MaxAI | Browser extension sidebar | Many models in one extension | Users of other browsers |
| Duck.ai | Private chat front-end | Anonymised model access | Private everyday chat |
| Perplexity AI | Answer engine | Cited live-web answers | Research questions |
Last checked . Read from brave.com during this check, with the screenshot above captured at the same time.
Leo's privacy commitments are Brave's own statements; read Brave's privacy policy for details. Leo requires the Brave browser, and premium is needed for more models and higher limits.
A private chat front-end, an extension assistant and an answer engine to compare with Brave Leo.
Brave Leo earns 4.1 as one of the most privacy-respecting ways to use AI while browsing: it chats with your tabs, summarises, translates and analyses documents, grounds answers with Brave Search and lets you bring your own local or remote models, with Brave stating that chats are not retained or used for training and no login is required. It suits privacy-minded users and existing Brave fans. It only works in Brave, its built-in models and limits are narrower than some rivals, and summaries still need checking. AInexfinder Editor Score: 4.1/5.
AInexfinder does not list plan prices or billing details. For current pricing, plans, and trials, visit the official Brave Leo website.
Visit official website for pricingVendor pricing, credits, and billing policies change over time. Always confirm on the official site before you buy.
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Assigned reviewer
Daniel ReedSenior AI Tools Reviewer
Daniel reviews AI tools the slow way — by actually using them on real projects. His reviews cover what works, what breaks, and who each tool is genuinely a good fit for.
Daniel and the AInexfinder editorial team research Brave Leo using public product information, listing evidence, and (when available) hands-on checks. Scores reflect listing completeness and transparency — not paid placement.
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