Highest Safety grade
Lumo
- Privacy
- 8.4
- Safety
- 6.3
- No account needed
- Open source
- No-logs policy
Infrastructure · October 2026
Private AI assistants
Mainstream AI assistants tie every conversation to an account, and usually to a phone number and a card. A private AI service breaks that link: some need no login at all, some accept crypto, some state that prompts are not stored or used for training, and some run in a way that prevents the operator from reading them.
These are very different guarantees. "No login" hides who you are but not what you typed. "No logs" is a promise you cannot check unless it has been audited or is enforced by the design. Each listing records which claims the provider makes and what backs them.
Private AI in short
10 private ai usable without mandatory ID are listed and graded here. 5 have terms that rule out identity checks entirely. The highest Safety grade belongs to Lumo (6.3/10), and the highest Privacy grade to Routstr (8.6/10). 0 accept Monero and 0 publish a Tor onion address.
- Listed
- 10
- ID never required
- 5
- May ask for ID
- 0
- Accept Monero
- 0
- Onion address
- 0
- Incidents on record
- 0
Reflects the listings as of 22 Oct 2026.
Our picks
Where to start
-
-
Highest Privacy grade
Routstr
- Privacy
- 8.6
- Safety
- 6.1
- No account needed
- Open source
- Accepts Lightning
-
Best that never asks for ID
Brave Leo
- Privacy
- 8.4
- Safety
- 5.8
- No account needed
- Open source
- No-logs policy
Picked by rule from the recorded facts, not by payment. Compare Lumo and Maple AI side by side →
10 listed
Private AI, ranked by Safety grade
| # | Service | KYC | Privacy | Safety | Evidence | Accepts | Incidents |
|---|---|---|---|---|---|---|---|
| 01 | Lumo No account needed Open source Proton's AI assistant with zero-access encrypted chat history and guest access | Never KYC 0 | 8.4 | 6.3 | Docs reviewed | ||
| 02 |  Maple AI Open source AI assistant running open models in encrypted enclaves, with open-source client | Not mentioned KYC 1 | 6.4 | 6.3 | Docs reviewed | ||
| 03 | Routstr No account needed Open source Open protocol for pay-per-request AI inference paid with Cashu ecash and Lightning | Never KYC 0 | 8.6 | 6.1 | Docs reviewed | BTC | |
| 04 | Brave Leo No account needed Open source AI assistant built into the Brave browser; no account or login for free use | Never KYC 0 | 8.4 | 5.8 | Docs reviewed | ||
| 05 |  Confer Open source End-to-end encrypted AI assistant from the creator of Signal; account required | Not mentioned KYC 1 | 6.0 | 5.8 | Docs reviewed | ||
| 06 |  PayPerQ (PPQ.AI) No account needed Pay-per-query access to many AI models with no registration; crypto or card | Never KYC 0 | 8.3 | 5.0 | Docs reviewed | BTC | |
| 07 |  NanoGPT No account needed Pay-as-you-go access to many AI models without an account; accepts crypto | Never KYC 0 | 8.2 | 5.0 | Docs reviewed | XNO | |
| 08 |  Duck.ai No account needed DuckDuckGo's chat front end that anonymises requests to third-party AI models | Not mentioned KYC 1 | 6.4 | 5.0 | Docs reviewed | ||
| 09 |  Venice AI chat and API that keeps conversation history on the user's device | Not mentioned KYC 1 | 6.4 | 5.0 | Docs reviewed | BTCUSDC | |
| 10 |  NoFilterGPT AI chat marketed as unfiltered, with image tools; card or crypto payment | Not mentioned KYC 1 | 5.8 | 4.6 | Docs reviewed | ETHBTCUSDC |
Across all 10
How they compare on features
The share of listed services that offer each feature, and that carry each warning in their terms. Select a row to see the services behind it.
How many offer
How many have this in their terms
Criteria
What we check for every AI service
- Whether an account, email or phone number is needed
- What the provider says about storing and training on prompts
- Whether the privacy claim is enforced by design or only by policy
- Payment options, including crypto
Questions
Private AI: common questions
What makes an AI service private?
Three separate things: not needing an identity to use it, not keeping your prompts, and not being able to read them in the first place. Few services offer all three. Each listing says which apply.
Can I use AI without logging in?
Yes. Several services offer chat with no account. The listings marked "No registration" need none.
Is a no-logs AI claim verifiable?
Only if an independent audit confirms it or the system is built so the operator cannot access prompts. Otherwise it is a policy statement, and the listing labels it as one.
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