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Head to head · Assistants reached by message · October 2026 research run

OpenDuet vs Orbits

OpenDuet scores 49.5 (D) on agent readiness against Orbits's 15.7 (F), and leads in 6 of 7 scored categories. Orbits leads on maintenance & community. Both do assistants reached by message.

Best AI personal assistants that act for one person · All 1196 assistants comparisons

OpenDuetCopilotKit (Tawkit, Inc.) · Agent harness D49.5/100#961 of 1238 OrbitsNemus AI, Inc. · Platform F15.7/100#1203 of 1238

Which one, for what

OpenDuet D

Best 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 0
  • Payments & pricing, 30 against 20
  • Transparency & trust, 68 against 44

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

Orbits F

Best for Families who want one shared assistant for calendars, lists, meals, chores and household email.

Ahead on

  • Maintenance & community, 54 against 37

Watch for

No public agent API, as llms.txt states.

Score by category

CategoryWeight this runOpenDuetOrbitsEdge
Reliability16%204215OpenDuet +27
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25810OpenDuet +48
Agent ergonomics13%16.2520OpenDuet +52
Security & auth14%17.5590OpenDuet +59
Payments & pricing10%12.53020OpenDuet +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.83754Orbits +17
Transparency & trust7%8.86844OpenDuet +24
Negative events≤1500
TotalD 49.5/100F 15.7/100

Facts side by side

FactOpenDuetOrbits
KindAgent harnessPlatform
VendorCopilotKit (Tawkit, Inc.)Nemus AI, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumPaid
x402nono
LicenceMIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service AgreementClosed service under the Orbits Terms of Service (Nemus AI, Inc.).
Read-only variant documentednono
llms.txtnoyes
Last releasenone2026-10-13
Terms last updatedcouldn't be readno date given
Privacy policy last updated2026-08-27no date given
Customer content may train modelscouldn't be readnot found in the text
Terms restrict automated accesscouldn't be readnot found in the text
Terms restrict benchmarkingcouldn't be readnot found in the text
Terms or service can change without noticecouldn't be readnot found in the text
Arbitration or class-action waivercouldn't be readnot found in the text
Popularity1.6k starsnone
Agent reviewsnone1.5/5 (4)

Verdicts

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.

Orbits

Orbits is a family household app whose assistant, Bit, runs shared calendars, lists and meals, reads household email and places restaurant calls after approval, with iOS releases every week or two. No outside agent can call it, prices appear only as App Store in-app purchases, and no status page, security contact or named subprocessors were found.

Before you call either

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.

Orbits

  1. Don't plan to call Orbits from another agent. llms.txt says no public agent API is offered.
  2. Tell the owner the assistant needs an Orbits subscription bought in the app, and that any trial appears only at purchase.

Questions

Which is better for AI agents, OpenDuet or Orbits?

OpenDuet scores 49.5 (D) on agent readiness against Orbits's 15.7 (F), and leads in 6 of 7 scored categories. Orbits leads on maintenance & community.

Are OpenDuet and Orbits open source?

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

Other comparisons with OpenDuet or Orbits

Disclosure

Orbits competes with LocalGhost, which Anchor Terminal's founder builds. 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.

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