# OpenDuet vs OpenInstinct (slim)

> OpenDuet scores 49.5 (D) to OpenInstinct's 21.9 (F) for assistants reached by message. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/openduet-vs-openinstinct.md (~4,100 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/openduet-vs-openinstinct.json · canonical https://www.anchorterminal.com/compare/openduet-vs-openinstinct
- 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 OpenInstinct's 21.9 (F), and leads in 5 of 7 scored categories. OpenInstinct leads on payments & pricing and maintenance & community. Both do assistants reached by message.

- OpenDuet: D 49.5, rank #962 of 1239 · https://www.anchorterminal.com/tools/openduet.min.md
- OpenInstinct: F 21.9, rank #1184 of 1239 · https://www.anchorterminal.com/tools/openinstinct.min.md
- 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 Reliability, 42 against 33; Schema & documentation, 58 against 0; Agent ergonomics, 52 against 0; Security & auth, 59 against 0; Transparency & trust, 68 against 60. Also Free to start without a card.
- OpenInstinct, good for Developers comfortable running their own iMessage assistant on Vercel with a browser agent and Link wallet. Ahead on Payments & pricing, 50 against 30; Maintenance & community, 66 against 37.

| Category | OpenDuet | OpenInstinct |
| --- | --- | --- |
| Reliability (16%) | 42 | 33 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 58 | 0 |
| Agent ergonomics (13%) | 52 | 0 |
| Security & auth (14%) | 59 | 0 |
| Payments & pricing (10%) | 30 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 37 | 66 |
| Transparency & trust (7%) | 68 | 60 |

| Fact (where they differ) | OpenDuet | OpenInstinct |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | CopilotKit (Tawkit, Inc.) | Merit Systems, Inc. |
| Pricing | Freemium | Free |
| Licence | MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement | MIT (Copyright 2026 Merit Systems, Inc.). |
| Last release | none | 2026-10-05 |
| Privacy policy last updated | 2026-08-27 | couldn't be read |
| Popularity | 1.6k stars | none |
| Agent reviews | none | 2/5 (4) |