Brave Leo vs Lumo
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
AI tool · Freemium
The AI assistant built into the Brave browser, designed to answer about pages without keeping chat logs.
AI tool · Freemium
Proton's privacy-focused AI assistant that keeps no chat logs and encrypts saved conversations.
Our verdict
Brave Leo is a privacy-minded AI assistant built into the Brave browser, aimed at people who want help reading or summarising the page they are on. Lumo is Proton's standalone privacy-focused AI chat assistant, aimed at people who want private conversations outside a browser, and it encrypts saved chat history. Choose based on whether you already use Brave or want a general chat assistant from a privacy-focused provider.
Pick Brave Leo if you already use the Brave browser and want quick, private summaries of pages and videos.
Pick Lumo if you want a standalone private AI chat, especially if you already use Proton services.
| Key difference | Brave Leo | Lumo |
|---|---|---|
| Where it runs | Built into the Brave browser; requires using Brave. | Standalone assistant on web, iOS and Android. |
| Best at | Answering questions about pages and summarising pages and videos. | Private chat, with encrypted saved conversation history and file upload. |
| Privacy design | No-logs design; choice of models and option to bring your own model. | No-logs chat; saved chats are encrypted; open models. |
| Platforms | Windows, macOS, Linux, iOS and Android. | Web, iOS and Android. |
| Price | Freemium. | Freemium. |
Written with AI from both products' catalogue entries · updated 2026-10-29
Who each one is for
Choose Brave Leo if you need…
- Private in-browser AI
- Summarising pages in Brave
Choose Lumo if you need…
- Privacy-conscious AI chat
- Proton users
Side-by-side
| Brave Leo | Lumo | |
|---|---|---|
| Type | Security & privacy · Private AI | Security & privacy · Private AI |
| Price | Freemium | Freemium |
| Platforms | Windows, macOS, Linux, iOS, Android | Web, iOS, Android |
| Works with | — | — |
| Hands-on tested by us | Not yet | Not yet |
| Last checked | 2026-10-29 | 2026-10-29 |
What each one is
Brave Leo
The AI assistant built into the Brave browser, designed to answer about pages without keeping chat logs. Private and convenient for Brave users. Requires using the Brave browser.
Lumo
Proton's privacy-focused AI assistant that keeps no chat logs and encrypts saved conversations. A genuine privacy option. Model capability trails frontier assistants.
Best for
Brave Leo
- Private in-browser AI
- Summarising pages in Brave
Lumo
- Privacy-conscious AI chat
- Proton users
Strengths
Brave Leo
- Page and video summaries
- No-logs design
- Choice of models
- Bring your own model
Lumo
- No-logs chat
- Encrypted chat history
- Open models
- File upload
Frequently asked questions
Should I use Brave Leo or Lumo?
Brave Leo is a privacy-minded AI assistant built into the Brave browser, aimed at people who want help reading or summarising the page they are on. Lumo is Proton's standalone privacy-focused AI chat assistant, aimed at people who want private conversations outside a browser, and it encrypts saved chat history. Choose based on whether you already use Brave or want a general chat assistant from a privacy-focused provider. Pick Brave Leo if you already use the Brave browser and want quick, private summaries of pages and videos. Pick Lumo if you want a standalone private AI chat, especially if you already use Proton services.
What is the difference between Brave Leo and Lumo?
Brave Leo: The AI assistant built into the Brave browser, designed to answer about pages without keeping chat logs. Lumo: Proton's privacy-focused AI assistant that keeps no chat logs and encrypts saved conversations. Brave Leo suits private in-browser ai, while Lumo suits privacy-conscious ai chat.
Are Brave Leo and Lumo free?
Brave Leo: Freemium. Lumo: Freemium.
What are other alternatives to Brave Leo and Lumo?
Other options people compare them with include Duck.ai.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.