# Leon vs Tab (slim)

> Leon scores 41 (E) to Tab's 10.7 (F) for assistants that remember you. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/leon-vs-tab-bot.md (~3,200 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/compare/leon-vs-tab-bot.json · canonical https://www.anchorterminal.com/compare/leon-vs-tab-bot
- 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 Tab's 10.7 (F), and leads in 6 of 7 scored categories. Tab leads on maintenance & community. Both do assistants that remember you.

- Leon: E 41, rank #938 of 1010 · https://www.anchorterminal.com/tools/leon.min.md
- Tab: F 10.7, rank #1003 of 1010 · https://www.anchorterminal.com/tools/tab-bot.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 0; Agent ergonomics, 57 against 0; Security & auth, 34 against 4; Payments & pricing, 60 against 0; Transparency & trust, 60 against 45. Also No key needed to call it; Free to start without a card; Open source.
- Tab, good for A person who wants a texting assistant that browses, calls and buys with tight checkout controls. Ahead on Maintenance & community, 58 against 15.

| Category | Leon | Tab |
| --- | --- | --- |
| Reliability (16%) | 32 | 5 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 33 | 0 |
| Agent ergonomics (13%) | 57 | 0 |
| Security & auth (14%) | 34 | 4 |
| Payments & pricing (10%) | 60 | 0 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 58 |
| Transparency & trust (7%) | 60 | 45 |

| Fact (where they differ) | Leon | Tab |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | Louis Grenard (Leon AI) | Terrasoft, Inc. |
| Auth | None | OAuth or key |
| Pricing | Free | Paid |
| Licence | MIT | Closed service under Tab's Terms of Use (Terrasoft, Inc., effective 2 September 2026). |
| Last release | 2023-05-01 | none |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Popularity | 18k stars | none |