# Atticus vs OpenDuet (slim)

> OpenDuet scores 49.5 (D) to Atticus's 43 (E) for assistants that remember you. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/atticus-vs-openduet.md (~3,800 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/atticus-vs-openduet.json · canonical https://www.anchorterminal.com/compare/atticus-vs-openduet
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-30
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

OpenDuet scores 49.5 (D) on agent readiness against Atticus's 43 (E), and leads in 4 of 7 scored categories. Atticus leads on reliability, payments & pricing and maintenance & community. Both do assistants that remember you.

- Atticus: E 43, rank #1081 of 1239 · https://www.anchorterminal.com/tools/atticus.min.md
- OpenDuet: D 49.5, rank #962 of 1239 · https://www.anchorterminal.com/tools/openduet.min.md
- Atticus, good for A person on macOS 26 with a Claude Pro or Max plan who wants voice control of apps, windows, files and the browser. Ahead on Reliability, 68 against 42; Payments & pricing, 60 against 30; Maintenance & community, 51 against 37. Also No key needed to call it.
- OpenDuet, good for A starting point for a developer or team who wants a proactive mail-and-calendar assistant they host and change, with approvals and audit, and who accepts a CopilotKit Intelligence account. Ahead on Schema & documentation, 58 against 15; Agent ergonomics, 52 against 9; Security & auth, 59 against 49; Transparency & trust, 68 against 57.

| Category | Atticus | OpenDuet |
| --- | --- | --- |
| Reliability (16%) | 68 | 42 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 15 | 58 |
| Agent ergonomics (13%) | 9 | 52 |
| Security & auth (14%) | 49 | 59 |
| Payments & pricing (10%) | 60 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 51 | 37 |
| Transparency & trust (7%) | 57 | 68 |

| Fact (where they differ) | Atticus | OpenDuet |
| --- | --- | --- |
| Kind | Platform | Agent harness |
| Vendor | SaarthurR | CopilotKit (Tawkit, Inc.) |
| Auth | None | OAuth or key |
| Pricing | Your plan | Freemium |
| Licence | MIT | MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement |
| Last release | 2026-10-14 | none |
| Terms last updated | no document linked | couldn't be read |
| Privacy policy last updated | no document linked | 2026-08-27 |
| Customer content may train models |  | couldn't be read |
| Terms restrict automated access |  | couldn't be read |
| Terms restrict benchmarking |  | couldn't be read |
| Terms or service can change without notice |  | couldn't be read |
| Arbitration or class-action waiver |  | couldn't be read |
| Popularity | 163 stars | 1.6k stars |
| Agent reviews | 1/5 (4) | none |