Brave's privacy-focused AI assistant built into the browser.
Browser
Brave Leo is the AI assistant built into the Brave browser — a chat interface that answers questions, summarizes pages, and translates content while going out of its way to not remember anything about you afterward. Launched in 2023 and matured through several LLM upgrades since, Leo in 2026 is the sharpest answer for anyone who wants a browser-integrated AI assistant without accepting the query-logging, model-training, and account-linked telemetry that come standard with the Chrome-plus-ChatGPT or Edge-plus-Copilot stack. It is the privacy-first play in the AI browser category, and it is one of the few products in that category where the privacy story actually holds up to scrutiny.
At the center of Leo is a chat panel that opens as a sidebar in any Brave tab. Ask a question, paste content, summarize the current page, translate a passage, or generate a response — Leo handles all of it through a rotating menu of underlying models: Mixtral, Llama 3, Claude, and Brave's own hosted model for anonymous default use. The routing between models is user-controlled on Premium; the free tier uses a smart default. Critically, none of your queries are logged to a user account, none are used to train the underlying models, and Leo works without a Brave account at all — which is essentially a unique posture in the mainstream AI assistant market.
The one-line positioning: Brave Leo is the AI assistant you use when you like ChatGPT for daily tasks but hate the account-and-logging trade-off, and you already respect Brave's privacy posture enough to consider switching browsers. It is not the deepest AI assistant on the market. It is the most private one that is actually useful.
Leo's honest limitation is that it lives inside Brave, and the market for "please switch browsers to use my AI assistant" is smaller than the market for "install this extension." If you are not already a Brave user, Leo is a reason to consider Brave, but the browser switch is a real commitment. For users who prioritize convenience over privacy, ChatGPT as a Chrome extension or Perplexity's Comet browser probably fits better. For users who care about their query privacy the way they care about their email privacy, Leo is one of the few products in the market with a story that matches the rhetoric.
Leo's product surface is deliberately narrow — a chat assistant with page-context awareness and a rotating model selection. What sets it apart is what it deliberately does not do: no account, no logging, no training.
Chat sidebar in every Brave tab. Open Leo with a keyboard shortcut, ask a question, paste text, or summarize the current page. The context of what you are viewing can be injected into the conversation with one click — the "AI that reads the page with you" pattern that Perplexity, Arc, and others have converged on.
Model selection: Mixtral, Llama 3, Claude, and Brave-hosted. Free users get access to a smart default (currently a Brave-hosted variant of an open model), and can manually pick between Mixtral 8x7B and Llama 3 for specific queries. Premium users add Claude Haiku and Sonnet class for higher-quality responses. Model choice is per-conversation, which matters — different models are better at different jobs.
No account required. Leo works without signing up for anything. Open Brave, open Leo, ask a question — that is the whole flow. No email, no phone number, no subscription page. This is genuinely rare in the AI assistant market.
No query logging tied to user identity. Brave routes queries through anonymized infrastructure that separates request from user. Even if compelled, Brave cannot produce a log of "what did this user ask." This is a hard architectural guarantee, not a policy promise — the important distinction.
No training on your queries. Leo's underlying models are not trained on user conversations. The rotating third-party model providers (Anthropic for Claude, Together for Mixtral) also do not train on Leo traffic under the contractual terms Brave has published.
Page summarization and Q&A. Summarize any web page, ask questions about its content, translate passages, or extract structured data. This is the "AI reads the page with you" workflow, done with the same privacy posture as the general chat.
Writing and coding assistance. Draft emails, rewrite paragraphs, generate code — the general-purpose LLM feature set. Quality tracks the underlying model, which means Premium (with Claude access) is meaningfully better than Free (with default models) for anything creative or complex.
Voice input. Leo supports voice-to-text for hands-free query entry. Small feature, useful for accessibility.
Integration with Brave Search. Leo can cite Brave Search results in answers, providing sourcing similar to what Perplexity offers — though the citation UX is less polished.
Leo has a genuinely useful free tier and a Premium tier at $14.99 per month or $150 per year. As of 2026:
| Plan | Monthly | Annual (per month) | Best for |
|---|---|---|---|
| Free | $0 | — | Casual use, privacy-first users, general web tasks |
| Leo Premium | $14.99 | $12.50 ($150/year) | Daily-driver AI assistant use, best-model access |
Free is not a trial. The free tier includes unlimited chat with Brave's default model, access to Mixtral and Llama 3, page summarization, and the full privacy posture. For most users, free is fully usable as a daily-driver AI assistant. This is again unusual in a market where free tiers are typically caveated with severe caps.
Leo Premium at $14.99 monthly (or $150 annually, netting out to $12.50 per month) adds Claude Sonnet class model access, higher rate limits on the frontier models, priority processing during peak times, and early access to new features. Payment is anonymous — Brave supports credit cards, but also BAT (Brave's cryptocurrency) for users who want to pay without linking financial identity.
The honest read: Leo Premium at $150 per year is roughly 25 percent cheaper than ChatGPT Plus at $200 per year, and includes the anonymity guarantee ChatGPT Plus cannot offer. For a user whose primary AI assistant use is chat, page Q&A, and quick research — but who cares about the privacy posture — Leo Premium is a legitimately better deal than ChatGPT Plus. For users who need the deepest reasoning (o-series models), image generation (DALL-E 3), or code execution (ChatGPT's tool use), Leo does not match ChatGPT's feature depth, and Premium ChatGPT is still worth the extra $50 per year.
Pros
Cons
Privacy-first users already on Brave. This is Leo's home base. If you already use Brave for its ad-blocking and privacy posture, Leo is the AI assistant that matches your other tool choices without a compromise.
Users evaluating an alternative to ChatGPT for daily driving. For chat, page Q&A, and general LLM tasks, Leo Free is a viable ChatGPT Free alternative with a better privacy story. Leo Premium is a viable ChatGPT Plus alternative for users who do not need image generation or code interpreter.
Journalists and researchers dealing with sensitive topics. The "no query log tied to user identity" guarantee matters for professionals whose research includes queries they do not want tied to their name — investigative reporters, security researchers, healthcare workers exploring off-label options for a family member.
Users on shared or public computers. Because Leo requires no account, using it on a shared machine does not leave a login trail. Useful for library computers, hotel business centers, or shared family devices.
Small businesses in privacy-sensitive industries. Law firms, healthcare offices, and financial advisors have a legitimate reason to avoid sending client-adjacent queries through ChatGPT with the standard training-and-logging posture. Leo clears the bar; ChatGPT (without an enterprise contract) does not.
Users in jurisdictions where data-sovereignty matters. For European users concerned about US-based data processing, or for users in regulatory environments with strict cross-border rules, Leo's architecture minimizes exposure.
Leo's competition splits into the mainstream chat AI, privacy-focused alternatives, and other browser-integrated AI.
ChatGPT — the default. Deeper feature set, image generation, code interpreter, tool use. Weaker privacy posture, requires an account, and free-tier caps are meaningful. Winner if features matter more than privacy.
Perplexity — the search-first AI. Better citations, live web grounding on every query, deeper research capabilities. Requires an account, logs queries to that account. Winner if research is your primary AI use case.
DuckDuckGo AI Chat — the privacy-focused chat alternative from another privacy-first company. Similar posture to Leo (anonymous, no logging), less mature product, no browser integration. Solid backup option.
Arc Browser AI — Arc is the browser-native AI alternative from The Browser Company. Similar "AI in the browser" thesis, weaker privacy story, more sophisticated interaction model. Winner if aesthetics and interaction design matter more than privacy.
Edge with Copilot — Microsoft's answer. Similar browser-integrated AI, tied to a Microsoft account, weaker privacy posture. Winner if you are already deep in the Microsoft ecosystem.
Local LLMs via LM Studio or Ollama — the privacy-maximum play. Runs models entirely on your machine, zero network calls, zero logging by anyone. Trade-off is you need a capable machine (32GB+ RAM for anything useful) and the models are still meaningfully weaker than Claude or GPT. For truly sensitive work, this is the actual ceiling on privacy.
For most users comparing browser-integrated AI, the honest matrix is: ChatGPT for depth, Perplexity for research, Leo for privacy, and Arc for interaction design. Pick the axis you care about most.
Install Brave at brave.com. Available for Windows, macOS, Linux, iOS, and Android. Import your bookmarks and passwords from your current browser — the import flow is smooth.
Open Leo with the sidebar toggle or Ctrl+Shift+O (Cmd+Shift+O on Mac). No sign-up required. Ask a question in the chat panel. That is the whole flow.
Try the model selector. Switch between the default, Mixtral, and Llama 3 on the free tier. Notice which model handles your typical questions better. This informs whether Premium's Claude access is worth $150 per year for your use.
Test page Q&A on a real workflow. Open an article you want to summarize, open Leo, ask "summarize this page in five bullets." Then ask a follow-up question about a specific claim. This is the workflow that separates Leo from a standalone chatbot.
Decide Premium after two weeks. Free tier is honestly usable — do not upgrade prematurely. If you find yourself wanting better model quality on complex questions two or three times a week, Premium at $12.50 per month pays back easily. If free is meeting your needs, stay on free.
Do I need a Brave account to use Leo? No. Leo works without any account. If you subscribe to Premium, you get a subscription token (which you can activate anonymously via BAT payment) but there is no requirement to create a user profile.
Is Leo really private, or is that just marketing? Really private, based on Brave's published architecture. Queries route through anonymized infrastructure that separates the request from the user identity. Third-party model providers (Anthropic, Together AI) do not train on the traffic under the contracts Brave has published. This is stronger than any mainstream AI assistant's default posture. That said, "private" is not "encrypted end-to-end" — Brave and the model providers can technically see the query content while processing it. For truly sensitive queries, a local LLM is the harder guarantee.
How does Leo compare to ChatGPT? For chat, page Q&A, and general LLM tasks, Leo Premium is comparable to ChatGPT Plus on quality (both use frontier-class models). ChatGPT wins on feature breadth — image generation, code interpreter, file upload, tool use — while Leo wins on privacy and price. If you use ChatGPT's advanced features regularly, stay on ChatGPT. If you use ChatGPT mostly as a chat assistant, Leo Premium is a legitimate alternative.
Can Leo browse the web? Yes, Leo can retrieve context from web searches (via Brave Search) and cite sources. The implementation is less sophisticated than Perplexity's but useful for factual questions.
What happens to my chats? Nothing. Chats are stored locally in your browser only, not on Brave's servers or the underlying model providers' servers. Clear browser data to erase them.
Is Leo available on mobile? Yes, on both iOS Brave and Android Brave. The mobile experience is competent but the desktop version is more mature. Voice input is a nice mobile-first feature.
Brave Leo is the sharpest AI assistant on the market for users who genuinely care about query privacy, and one of the only browser-integrated AI experiences whose privacy story survives scrutiny. The free tier is honestly usable as a daily-driver assistant. Premium at $150 per year is 25 percent cheaper than ChatGPT Plus and includes the anonymity guarantee no mainstream competitor can offer. The model selection — Mixtral, Llama 3, and Claude on Premium — covers most real-world LLM use cases.
Where Leo stops being the right answer: users who need the deepest ChatGPT features (image generation, code interpreter, tool use), users whose AI workflow is primarily research and citation (Perplexity wins that job), and users unwilling to switch browsers to gain the assistant. The Brave switch is a real commitment — a great browser, but not one that most people default to without a specific reason. Leo is that reason for users who prioritize privacy; it is not that reason for users who prioritize AI feature depth.
The honest recommendation: if privacy matters to you at all, install Brave and try Leo Free for two weeks alongside your current AI assistant. Run the same queries in both and see whether the answer quality gap is meaningful for your use. For most casual users, it is not, and Leo becomes a real ChatGPT Free replacement. For power users, run Premium for a month during a heavy-workload week and evaluate whether the Claude-class model access closes the gap to ChatGPT Plus on your actual tasks.
The best privacy-plus-utility AI investment for most users is Brave with Leo Premium at $150 per year — cheaper than ChatGPT, private by architecture, and good enough for 90 percent of AI assistant tasks. For the other 10 percent, keep a ChatGPT Plus subscription for the deep features. The two together, at about $30 per month total, cover the AI assistant landscape better than either alone.