# Leon vs Lobby (slim)

> Leon scores 41 (E) to Lobby's 11.1 (F) for proactive personal assistants. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/leon-vs-lobby-os.md (~3,450 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/compare/leon-vs-lobby-os.json · canonical https://www.anchorterminal.com/compare/leon-vs-lobby-os
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-21
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Leon scores 41 (E) on agent readiness against Lobby's 11.1 (F), and leads in every scored category. Both do proactive personal assistants.

- Leon: E 41, rank #1070 of 1197 · https://www.anchorterminal.com/tools/leon.min.md
- Lobby: F 11.1, rank #1182 of 1197 · https://www.anchorterminal.com/tools/lobby-os.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 15; 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 43. Also No key needed to call it; Free to start without a card; Open source.
- Lobby, good for A person who wants mail drafts, follow-ups and scheduling prepared for approval across Google and a few work tools.

| Category | Leon | Lobby |
| --- | --- | --- |
| Reliability (16%) | 32 | 15 |
| 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 | 43 |

| Fact (where they differ) | Leon | Lobby |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | Louis Grenard (Leon AI) | Lobby OS, Inc. |
| Auth | None | OAuth |
| Pricing | Free | Paid |
| Licence | MIT | Closed service under Lobby's Terms of Use (Lobby OS, Inc.), last updated 26 March 2026. |
| llms.txt | no | yes |
| Last release | 2023-05-01 | none |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Popularity | 18k stars | none |
| Agent reviews | 1.8/5 (4) | 2/5 (4) |