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Brave Leo arrived in November 2023 as a sidebar AI assistant for the Brave browser, and it has grown into one of the more unusual offerings in the AI chat market. Unlike most platforms that treat privacy as an afterthought, Leo bakes it into the architecture: no IP logging, no conversation storage, and no requirement to create an account. In late 2025, Brave went further by introducing Trusted Execution Environments (TEEs) powered by NEAR.AI and Intel TDX technology, giving users cryptographically verifiable assurance that requests are processed exactly as described.
Two features set Leo apart from the field. The Bring Your Own Model (BYOM) option lets you connect Leo to locally-running models via Ollama or your own API endpoints, which is rare among browser-native AI tools. The Skills feature, launched in December 2025, lets you assign keyboard shortcuts to frequently used prompts to cut down on repetitive setup.
Agentic browsing, which lets Leo autonomously navigate and complete tasks on your behalf, entered early testing across all Brave release channels in May 2026.
I’ve been covering AI platforms and B2B software at TechRadar Pro since 2018, including our 2026 vibe coding buying guide and the Microsoft Build conference this year in San Francisco. Here’s how Leo holds up.
What is Brave Leo AI?
Brave Leo is an AI chat assistant built directly into the Brave browser, accessible from a sidebar panel, a full-page view, or the address bar. It’s available on Windows, macOS, and Linux on desktop, and on Android and iOS on mobile. No separate installation, app, or account is needed to get started with the free tier.
Leo’s defining quality is page awareness. It reads the content of the active tab, whether that’s a webpage, PDF, Google Doc, Google Sheet, or YouTube video, and uses that content as context for your questions. You don’t need to copy-paste anything or upload files to an external server.
Moreover, Brave Search pulls in real-time information from across the web when your question calls for it.
The platform targets privacy-conscious individuals, students, and professionals who want AI assistance without feeding personal data to third parties. It’s also a practical option for people already running Brave who’d rather not switch tabs to reach a separate AI app.
Brave Leo AI: At a glance
|
Attribute |
Notes |
|
Underlying model(s) |
Qwen, Meta Llama, Google Gemma (free); Claude Haiku, Claude Sonnet, DeepSeek V3.1 (premium); all hosted on Brave’s own secure infrastructure |
|
Best for |
Privacy-conscious users, web research, document summarization, coding assistance |
|
Distinguishing functions |
Privacy proxy, BYOM, Skills shortcuts, Automatic mode, agentic browsing (early access) |
|
UI features |
Sidebar panel and full-page mode; address bar integration; in-chat model selector |
|
Subscription costs |
Free (open models, rate-limited); Leo Premium at $14.99/month or $149.99/year |
|
API pricing |
Not available; Leo is a browser-only product with no public API |
Buy it if…
- You prioritize AI privacy above all else. Leo doesn’t log your conversations, store your IP address, or use your chats for model training. For users handling sensitive research or confidential work, that’s a real distinction from most AI chatbots.
- You’re already a Brave browser user. Leo is built directly into Brave with no extra installation required. It picks up page context automatically, making web research faster with very little setup.
- You want model flexibility. The ability to switch between Llama, Claude, Qwen, and others, or connect your own model via BYOM, gives you more control than most browser-native AI tools offer.
Don’t buy it if…
- You need AI across multiple browsers or tools. Leo only works inside Brave. If you regularly use Chrome, Firefox, or other apps, you won’t have Leo available in those environments.
- You rely on intensive daily free usage. The free tier hits its ceiling quickly during heavy use. A Premium subscription is more or less necessary for anyone using Leo throughout the working day.
- You need enterprise features or team access. Leo is a personal assistant with no team accounts, admin controls, or organization-level management. Businesses looking to deploy it across multiple users will need individual subscriptions for each.
My time with Brave Leo AI
My first impression of Leo was how little friction there was to getting started. No account confirmation, no model selection screen, no onboarding pop-ups. Within seconds of opening the sidebar, I was summarizing a lengthy policy document open in another tab.
The sidebar stays out of the way until you need it, which I found more practical than switching to a dedicated AI app.
Automatic mode worked well in practice. Leo picked Claude Sonnet for a nuanced writing task and shifted to a faster model for a quick factual question, all without me having to intervene. I did run into rate-limit warnings during a longer research session on the free tier.
Those limits don’t reset frequently enough for sustained daily use, and that was what ultimately pushed me to test the Premium plan.
The Skills feature was a useful addition for repetitive tasks. I set up a shortcut for a summarization prompt I return to frequently. After a few days, it saved real time.
New users may not find it easily, though, since it’s tucked away and not highlighted in Leo’s default interface.
Brave Leo AI: Features
Leo’s feature set has expanded considerably since its 2023 launch. The platform covers summarization, translation, code generation, content writing, question answering, and document analysis across webpages, PDFs, Google Docs, Google Sheets, and YouTube videos. Image understanding was added more recently, and agentic browsing, which lets Leo autonomously complete multi-step tasks in an isolated browser profile, entered early access across all release channels in May 2026.
Page awareness is one of Leo’s strongest practical assets. It reads whatever you’re currently viewing and uses it as live context for your prompts. This works without uploading anything to a third-party server, which keeps the privacy model consistent across all use cases.
BYOM is a genuine differentiator. You can connect Leo to locally-running models via Ollama, to OpenAI-compatible endpoints, or to other third-party APIs. For developers or power users who want a specific model or prefer to keep everything on-device, this adds a level of control that most browser AI tools don’t offer.
The Skills feature lets you save and trigger custom prompts with keyboard shortcuts. It’s useful for repetitive workflows, though the current library of built-in skills is still relatively narrow. More customization here would strengthen the feature, and it’s an area I’d like to see Brave expand.
Multi-tab context and Tab Focus Mode let Leo work across several open tabs rather than just the active one, which helps when cross-referencing multiple sources. The Brave Talk integration is a useful bonus for anyone using Brave’s video conferencing tool: Leo can transcribe meetings in real time and produce summaries and action items without sharing data externally.
The one area where Leo falls behind dedicated AI platforms is memory. Leo doesn’t retain context between separate sessions, so every conversation starts from scratch. Users who want a long-running assistant that remembers preferences or project history will find this limiting.
Brave Leo AI: User experience
The interface is clean and minimal. The sidebar slides open without disturbing your active page, and the full-page view at brave://leo-ai works well for longer sessions. Switching models takes a couple of clicks from the dropdown at the top of the chat.
Automatic mode removes the decision entirely if you’d rather not think about it.
The address bar integration is a small but practical touch: typing a question and selecting “Ask Leo” opens the response in full-page view without interrupting your browsing. Mobile support on Android and iOS covers the same core features as desktop, with voice input available on iOS. The experience is consistent across platforms, which isn’t always the case with browser-based AI tools.
Brave Leo AI: Customer support
Brave handles Leo support through its Help Center at support.brave.app. The documentation is well-organized and covers most common scenarios, from initial access to advanced configuration options like BYOM and model settings. Articles are generally current, which is more than can be said for some AI products that update fast but leave documentation behind.
There’s no live chat or dedicated support line for Leo. Community forums and the Help Center are the primary routes for getting help. For a free or modestly priced tool, this is standard, but business users with time-sensitive issues may find the self-serve model inadequate.
Brave Leo AI: Pricing
- Free tier: Access to open-source models (Llama, Qwen, Gemma), rate-limited usage, no account required
- Leo Premium: $14.99/month or $149.99/year, with a 7-day free trial. Includes Claude Haiku, Claude Sonnet, DeepSeek V3.1, and other advanced models; higher rate limits; early access to new features
The free tier works for light, occasional use. You get solid open-source models and full privacy protections without signing up for anything. Rate limits are the catch: they kick in faster than you’d expect during sustained sessions, and there’s no way to pay for a small top-up without committing to Premium.
At $14.99/month, Leo Premium is cheaper than ChatGPT Plus ($20/month) and sits comfortably within range for an individual AI subscription. The annual plan at $149.99 brings that down to about $12.50/month, which is reasonable given the model access on offer. There’s no team or enterprise pricing.
Leo also has no public API, so external workflow integration isn’t an option.
Brave Leo AI: alternatives you should consider
- ChatGPT Atlas: A Chromium-based web browser from OpenAI with built-in access to the most widely used AI assistant. However, it’s only available to macOS users for now and has now Windows version.
- Microsoft Copilot: Built into Microsoft Edge and deeply integrated with the Microsoft 365 suite. The stronger pick for users already working in the Windows and Office ecosystem.
- Perplexity AI: A research-focused AI that delivers sourced, real-time answers from the web. Worth considering if web research and fact-finding are your primary use cases rather than general-purpose chat.
How I tested Brave Leo AI
- Used Leo’s free tier for web research, PDF summarization, and content drafting over multiple sessions to assess response quality and the real-world impact of rate limits.
- Tested Premium-tier models including Claude Sonnet on complex writing and analysis tasks, comparing output quality against the default open-source models.
- Configured BYOM with Ollama, created custom Skills shortcuts, and put the multi-tab context feature through a multi-source research task.
Testing covered Brave Leo on desktop (Windows and macOS) and on Android, using both the sidebar and full-page chat modes. I evaluated response accuracy across summarization, factual questions, code generation, and writing tasks, and cross-referenced Brave’s privacy claims against official documentation and third-party reporting from sources including The Register.
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