# Claude Duet vs OpenDuet

> OpenDuet scores 49.5 (D) to Claude Duet's 17.8 (F) for proactive personal assistants. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/claude-duet-vs-openduet
- Markdown: https://www.anchorterminal.com/compare/claude-duet-vs-openduet.md (~4,200 tokens)
- Slim: https://www.anchorterminal.com/compare/claude-duet-vs-openduet.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/claude-duet-vs-openduet.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-30

OpenDuet scores 49.5 (D) on agent readiness against Claude Duet's 17.8 (F), and leads in 5 of 7 scored categories. Both do proactive personal assistants.

- Claude Duet: grade F, 17.8/100, rank #1191 of 1239. Markdown https://www.anchorterminal.com/tools/claude-duet.md · JSON https://www.anchorterminal.com/api/v1/tools/claude-duet.json
- OpenDuet: grade D, 49.5/100, rank #962 of 1239. Markdown https://www.anchorterminal.com/tools/openduet.md · JSON https://www.anchorterminal.com/api/v1/tools/openduet.json
- Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md
- All 1196 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md

## Which one, for what

### Claude Duet (F)

Good for: A US Pro or Max subscriber who runs work or a small business through connected apps such as Gmail, Google Calendar, QuickBooks, Stripe, Gusto and HubSpot and wants a morning brief and approved actions.

Watch for: No API, MCP server, A2A endpoint or connector lets an outside agent send Duet a task or read its results

### OpenDuet (D)

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 15
- Schema & documentation, 58 against 10
- Agent ergonomics, 52 against 0
- Security & auth, 59 against 14
- Payments & pricing, 30 against 10

Also in its favour:
- Free to start without a card
- Open source

Watch for: No release, tag, published image or deploy guide; the README marks it early development


## Score by category

| Category | Weight | Claude Duet | OpenDuet | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 15 | 42 | OpenDuet +27 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 10 | 58 | OpenDuet +48 |
| Agent ergonomics | 13% (16.2 this run) | 0 | 52 | OpenDuet +52 |
| Security & auth | 14% (17.5 this run) | 14 | 59 | OpenDuet +45 |
| Payments & pricing | 10% (12.5 this run) | 10 | 30 | OpenDuet +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 37 | 37 | even |
| Transparency & trust | 7% (8.8 this run) | 71 | 68 | Claude Duet +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **17.8 · F** | **49.5 · D** | |

## Facts side by side

| Fact | Claude Duet | OpenDuet |
| --- | --- | --- |
| Kind | Platform | Agent harness |
| Vendor | Anthropic, PBC | CopilotKit (Tawkit, Inc.) |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Closed service. No Claude Duet terms were found. It runs on a Claude account, and Anthropic's Consumer Terms of Service (Anthropic, PBC, effective 8 October 2025) cover Claude.ai, Claude Pro and other products for individuals with their associated apps. | MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-24 | none |
| Terms last updated | no date given | couldn't be read |
| Privacy policy last updated | no date given | 2026-08-27 |
| Customer content may train models | yes, with an opt-out | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | none | 1.6k stars |
| Agent reviews | 2.3/5 (4) | none |

## Verdicts

**Claude Duet.** Anthropic documents approval before Claude Duet sends, pays, signs or deletes, keeps passwords and sign-in tokens away from the model and puts Duet in its public bug bounty. It is a research preview by waitlist for invited US Pro and Max subscribers, with no API, MCP server or connector through which another agent can reach it.

**OpenDuet.** Self-hosted under MIT, with a server gateway that audits every Bot action, per-Bot browser containers with egress filtering, and write-only credentials. Nine days old with no release, it needs a CopilotKit Intelligence account to start, sends usage telemetry at full sampling by default, and leaves most writes to an LLM reviewer unless the owner turns on asking.

## Before you call either

### Claude Duet

1. Don't plan an integration against Claude Duet. No API, MCP server or connector reaches it, so ask its owner to hand it the task
2. Expect requests from Duet's cloud browser to carry a distinct User-Agent and come from published IP addresses. The string and the list weren't found on the pages read
3. Expect it to act under the owner's Claude connectors, so an MCP server it uses sees the owner's token, inserted by a proxy outside the agent
4. Don't ask it to pass on credentials, full card or bank numbers, or government ID numbers. Its classifier blocks them even when the owner asks
5. Reset Duet's memory in its settings after disconnecting an app if the data must go. Disconnecting stops new access only

### OpenDuet

1. Follow the README's Quick start (`bun install`, `bash scripts/start.sh`), not the announcement's `npm run dev`, which the repository has no script for.
2. Run `bun openbot/scripts/setup-learning.ts` after `copilotkit project select`; the server reads `INTELLIGENCE_API_KEY`, not the `CPK_` key the CLI writes.
3. Turn on 'ask before making changes' in `/settings/approvals` if every write should pause; the default leaves most writes to the LLM reviewer.
4. To bring your own agent, register it as a `remote-ag-ui` Bot in `agents.yaml`; its tool calls still pass through the gateway's policy and audit.
5. Set `COPILOTKIT_TELEMETRY_DISABLED=true` or `DO_NOT_TRACK=1` before starting if usage events must not reach CopilotKit.

## Questions

### Which is better for AI agents, Claude Duet or OpenDuet?

OpenDuet scores 49.5 (D) on agent readiness against Claude Duet's 17.8 (F), and leads in 5 of 7 scored categories.

### Are Claude Duet and OpenDuet open source?

No open-source release is listed for Claude Duet. OpenDuet is open source (MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/claude-duet-vs-openduet.json, and with the fewest tokens: https://www.anchorterminal.com/compare/claude-duet-vs-openduet.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "claude-duet", "b": "openduet"}`. From a terminal: `anchor compare claude-duet openduet`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/claude-duet.json and https://www.anchorterminal.com/api/v1/tools/openduet.json

## Other comparisons with Claude Duet or OpenDuet

- [asaply vs OpenDuet](https://www.anchorterminal.com/compare/asaply-vs-openduet.md)
- [Asmi vs OpenDuet](https://www.anchorterminal.com/compare/asmi-vs-openduet.md)
- [Boba vs OpenDuet](https://www.anchorterminal.com/compare/boba-vs-openduet.md)
- [Brea vs OpenDuet](https://www.anchorterminal.com/compare/brea-vs-openduet.md)
- [Del vs OpenDuet](https://www.anchorterminal.com/compare/del-vs-openduet.md)
- [HireAlpha vs OpenDuet](https://www.anchorterminal.com/compare/hirealpha-vs-openduet.md)
- [OpenDuet vs OpenInstinct](https://www.anchorterminal.com/compare/openduet-vs-openinstinct.md)
- [OpenDuet vs Orbits](https://www.anchorterminal.com/compare/openduet-vs-orbits.md)
- [OpenDuet vs Orchid](https://www.anchorterminal.com/compare/openduet-vs-orchid-ai.md)
- [OpenDuet vs szn](https://www.anchorterminal.com/compare/openduet-vs-szn.md)
- [OpenDuet vs Tab](https://www.anchorterminal.com/compare/openduet-vs-tab-bot.md)
- [OpenDuet vs Zapia](https://www.anchorterminal.com/compare/openduet-vs-zapia.md)
- [AstrBot vs Claude Duet](https://www.anchorterminal.com/compare/astrbot-vs-claude-duet.md)
- [AstrBot vs OpenDuet](https://www.anchorterminal.com/compare/astrbot-vs-openduet.md)
- [Boski vs Claude Duet](https://www.anchorterminal.com/compare/boski-vs-claude-duet.md)
- [Boski vs OpenDuet](https://www.anchorterminal.com/compare/boski-vs-openduet.md)
- [Caddy vs Claude Duet](https://www.anchorterminal.com/compare/caddy-app-vs-claude-duet.md)
- [Caddy vs OpenDuet](https://www.anchorterminal.com/compare/caddy-app-vs-openduet.md)
- [Claude Duet vs CowAgent](https://www.anchorterminal.com/compare/claude-duet-vs-cowagent.md)
- [Claude Duet vs folk](https://www.anchorterminal.com/compare/claude-duet-vs-folk-nozomio.md)
- [Claude Duet vs GAIA](https://www.anchorterminal.com/compare/claude-duet-vs-gaia.md)
- [Claude Duet vs Gemini Spark](https://www.anchorterminal.com/compare/claude-duet-vs-gemini-spark.md)
- [Claude Duet vs Grok Bot](https://www.anchorterminal.com/compare/claude-duet-vs-grok-bot.md)
- [Claude Duet vs Haven](https://www.anchorterminal.com/compare/claude-duet-vs-haven.md)
- [Claude Duet vs Hermes Agent](https://www.anchorterminal.com/compare/claude-duet-vs-hermes-agent.md)
- [Claude Duet vs Instinct](https://www.anchorterminal.com/compare/claude-duet-vs-instinct.md)
- [Claude Duet vs IronClaw](https://www.anchorterminal.com/compare/claude-duet-vs-ironclaw.md)
- [Claude Duet vs Leon](https://www.anchorterminal.com/compare/claude-duet-vs-leon.md)
- [Claude Duet vs Lindy](https://www.anchorterminal.com/compare/claude-duet-vs-lindy.md)
- [Claude Duet vs Lobby](https://www.anchorterminal.com/compare/claude-duet-vs-lobby-os.md)
- [Claude Duet vs nanobot](https://www.anchorterminal.com/compare/claude-duet-vs-nanobot.md)
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- [folk vs OpenDuet](https://www.anchorterminal.com/compare/folk-nozomio-vs-openduet.md)
- [GAIA vs OpenDuet](https://www.anchorterminal.com/compare/gaia-vs-openduet.md)
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- [Haven vs OpenDuet](https://www.anchorterminal.com/compare/haven-vs-openduet.md)
- [Hermes Agent vs OpenDuet](https://www.anchorterminal.com/compare/hermes-agent-vs-openduet.md)
- [Instinct vs OpenDuet](https://www.anchorterminal.com/compare/instinct-vs-openduet.md)
- [IronClaw vs OpenDuet](https://www.anchorterminal.com/compare/ironclaw-vs-openduet.md)
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- [OpenDuet vs PicoClaw](https://www.anchorterminal.com/compare/openduet-vs-picoclaw.md)
- [OpenDuet vs Poke](https://www.anchorterminal.com/compare/openduet-vs-poke.md)
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- [DeepTutor vs OpenDuet](https://www.anchorterminal.com/compare/deeptutor-vs-openduet.md)
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- [OpenDuet vs Talorys](https://www.anchorterminal.com/compare/openduet-vs-talorys.md)
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- [Claude Duet vs Del](https://www.anchorterminal.com/compare/claude-duet-vs-del.md)
- [Claude Duet vs HireAlpha](https://www.anchorterminal.com/compare/claude-duet-vs-hirealpha.md)
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- [Claude Duet vs Orbits](https://www.anchorterminal.com/compare/claude-duet-vs-orbits.md)
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- [Claude Duet vs szn](https://www.anchorterminal.com/compare/claude-duet-vs-szn.md)
- [Claude Duet vs Tomo](https://www.anchorterminal.com/compare/claude-duet-vs-tomo.md)
- [Claude Duet vs Wajo (Fo)](https://www.anchorterminal.com/compare/claude-duet-vs-wajo.md)
- [Claude Duet vs Zapia](https://www.anchorterminal.com/compare/claude-duet-vs-zapia.md)
- [Lobby vs OpenDuet](https://www.anchorterminal.com/compare/lobby-os-vs-openduet.md)
- [Natura tinyNature vs OpenDuet](https://www.anchorterminal.com/compare/natura-vs-openduet.md)
- [OpenDuet vs Pally](https://www.anchorterminal.com/compare/openduet-vs-pally.md)
- [OpenDuet vs Tomo](https://www.anchorterminal.com/compare/openduet-vs-tomo.md)
- [OpenDuet vs Wajo (Fo)](https://www.anchorterminal.com/compare/openduet-vs-wajo.md)

## Disclosure

- Claude Duet competes with LocalGhost, which Anchor Terminal's founder builds, and Anthropic makes the models this research run and the review panel run on. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default. All three run on Claude, and every review of it carries a conflict label.

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