# Leon vs szn (slim)

> Leon scores 41 (E) to szn's 7.3 (F) for assistants that act in your accounts. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/leon-vs-szn.md (~3,200 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/compare/leon-vs-szn.json · canonical https://www.anchorterminal.com/compare/leon-vs-szn
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-13

Leon scores 41 (E) on agent readiness against szn's 7.3 (F), and leads in every scored category. Both do assistants that act in your accounts.

- Leon: E 41, rank #938 of 1010 · https://www.anchorterminal.com/tools/leon.min.md
- szn: F 7.3, rank #1010 of 1010 · https://www.anchorterminal.com/tools/szn.min.md
- Leon, good for A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source. Ahead on Reliability, 32 against 5; Schema & documentation, 33 against 10; Agent ergonomics, 57 against 0; Security & auth, 34 against 0; Payments & pricing, 60 against 20; Maintenance & community, 15 against 2; Transparency & trust, 60 against 23. Also No key needed to call it; Free to start without a card; Open source.
- szn, good for A person who wants calls, emails and bookings done for them and has an access code.

| Category | Leon | szn |
| --- | --- | --- |
| Reliability (16%) | 32 | 5 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 33 | 10 |
| Agent ergonomics (13%) | 57 | 0 |
| Security & auth (14%) | 34 | 0 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 2 |
| Transparency & trust (7%) | 60 | 23 |

| Fact (where they differ) | Leon | szn |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | Louis Grenard (Leon AI) | Nomadic Futures |
| Auth | None | OAuth or key |
| Licence | MIT | Closed service. No terms of service were found on theszn.ai. A privacy policy and an acceptable use policy (both last updated March 2026) apply. |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | 2023-05-01 | none |
| Privacy policy last updated | no document linked |  |
| Popularity | 18k stars | none |