Proton's AI assistant with zero-access encrypted chat history and guest access
Privacy 8.4
Safety 6.3
Private AI Reviewed 22 Oct 2026
Brave Leo review
AI assistant built into the Brave browser; no account or login for free use
- No account needed
- Open source
- No-logs policy
- No email needed
- No phone number
ID never required KYC 0 Documentation reviewed
Privacy
8.4/ 10
Strong
Safety
5.8/ 10
Fair
Based on terms and documentation. No test transactions published yet. See the arithmetic
Brave Leo review in short
Brave Leo is an AI service. Its terms put it at KYC level 0 of 4: ID never required. NoKYC Score grades it 8.4/10 for privacy (strong) and 5.8/10 for safety (fair). In its favour: no account needed, no email needed and no phone number. No incidents are on record.
- Category
- Private AI
- KYC level
- 0 of 4: ID never required
- Grades
- Privacy 8.4/10, Safety 5.8/10
- Sign-up
- No account needed
- Fees
- Free tier; paid Premium tier available
- Incidents on record
- 0
- Last reviewed
- 22 Oct 2026
Cite this review
NoKYC Score, "Brave Leo review", reviewed 22 Oct 2026, https://nokycscore.com/service/brave-leo
Also available as plain text.
What Brave Leo is
Leo is the AI assistant built into the Brave browser. Brave's product page says the free version needs no account or login, that chats are not retained or shared and are not used for model training, and that the company does not collect identifiers such as IP addresses that could be linked to a user. Chat history can optionally be stored locally on the device. A paid Premium tier exists, and the page says a Premium account is created only to verify the subscription. Leo runs inside the browser rather than as a standalone website, so using it means installing Brave. The browser's source code, including its AI chat component, is published on GitHub.
What Brave Leo offers, and what to watch
6 of 13 privacy and safety features, 0 warnings in its terms.
"Not stated" means its own pages do not say.
Identity
- ID never required Yes The terms rule identity checks out, or the design makes them impossible.
- No account needed Yes Usable without creating an account, or the account is only a random number.
- No email needed Yes An email address is not required to sign up or use it.
- No phone number Yes A phone number is never required.
Payment
- Accepts Monero Not stated
- Accepts Lightning Not stated
Access
- Tor onion address Not stated
- Works without JavaScript Not stated
Trust
- Open source Yes The code that matters is public and can be inspected.
- No-logs policy Yes States that connection or activity logs are not kept.
- Independent audit Not stated
- Company named Not stated
- 5+ years operating Not stated
Warnings
- May ask for ID Not in terms
- Email required Not in terms
- Phone number required Not in terms
- Closed source Not in terms
- Nobody accountable Not in terms
Does Brave Leo require KYC?
- 0 Never
- 1 Not mentioned
- 2 Rare
- 3 On risk flag
- 4 Mandatory
KYC level 0: ID never required. The terms rule out identity checks, or the design makes them impossible.
Product page states "No account or login is required" for the free tier.
How the grades add up
Both grades start at 50 points and move by fixed, published amounts. Nothing is adjusted by hand. The total is divided by ten.
Privacy
8.4- Starting points 50
- KYC level 0: ID never required +20
- No registration +6
- No email needed +3
- No phone needed +1
- Open source +2
- No-logs policy +2
- Total, clamped to 0–100 84
Safety
5.8- Starting points 50
- Open source +8
- Total, clamped to 0–100 58
Test ledger
Real transactions run by our editors. A badge without a ledger is an assertion; this is the proof.
No test transactions published yet
The grades above rest on Brave Leo’s terms and documentation. Tests will appear here with the date, route, amount band and result as they are run.
Incidents on record
No incidents are on record for Brave Leo. If you have a documented case, report it.
User reviews
Reviews never change a grade. Reviews with a transaction reference are marked.
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Brave Leo: common questions
Does Brave Leo require KYC?
Brave Leo is rated KYC level 0 of 4 on this site: ID never required. Product page states "No account or login is required" for the free tier.
Is Brave Leo safe to use?
Brave Leo has a Safety grade of 5.8 out of 10 and a Privacy grade of 8.4 out of 10. No incidents are on record. Evidence level: documentation reviewed.
Is Brave Leo legit?
Brave Leo is a working AI service. Being real is not the same as being safe: its Safety grade here is 5.8 out of 10, built from custody, liquidity, track record and incidents.
Is Brave Leo a scam?
NoKYC Score does not label services as scams; it records documented incidents with their sources and outcomes. No incidents are on record for Brave Leo.
Do I need an account or email to use Brave Leo?
No account needed.
What fees does Brave Leo charge?
Free tier; paid Premium tier available. Fees were recorded from Brave Leo's own pages and can change; check before you send.
Does Brave Leo have a Tor onion address?
No official onion address was found on Brave Leo's own pages.
Can I use Brave Leo over Tor?
Brave Leo does not publish an official onion address.
Listing history
- Listing added. Facts and KYC level set from the service's own terms and documentation.