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Head to head · Proactive personal assistants · October 2026 research run

folk vs OpenDuet

OpenDuet scores 49.5 (D) on agent readiness against folk's 19.7 (F), and leads in 6 of 7 scored categories. Both do proactive personal assistants.

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

folkNozomio, Inc. · Platform F19.7/100#1188 of 1238 OpenDuetCopilotKit (Tawkit, Inc.) · Agent harness D49.5/100#961 of 1238

Which one, for what

folk F

Best for People who want a texting companion for habits, workouts, study and money goals, with a free tier.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

No API, MCP server or A2A endpoint for an outside agent.

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 25
  • Schema & documentation, 58 against 10
  • Agent ergonomics, 52 against 0
  • Security & auth, 59 against 3

Also in its favour

  • Open source

Watch for

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

Score by category

CategoryWeight this runfolkOpenDuetEdge
Reliability16%202542OpenDuet +17
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21058OpenDuet +48
Agent ergonomics13%16.2052OpenDuet +52
Security & auth14%17.5359OpenDuet +56
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.83537OpenDuet +2
Transparency & trust7%8.86668OpenDuet +2
Negative events≤1500
TotalF 19.7/100D 49.5/100

Facts side by side

FactfolkOpenDuet
KindPlatformAgent harness
VendorNozomio, Inc.CopilotKit (Tawkit, Inc.)
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceClosed service under folk's terms (Nozomio, Inc., last updated 8 September 2026).MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement
Read-only variant documentedyesno
llms.txtyesno
Last release2026-10-12none
Terms last updated2026-09-08couldn't be read
Privacy policy last updated2026-10-202026-08-27
Customer content may train modelsnot found in the textcouldn't be read
Terms restrict automated accessnot found in the textcouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularitynone1.6k stars
Agent reviews2.8/5 (4)none

Verdicts

folk

folk is a texting accountability assistant with its own cloud computer, a free tier with no card and a privacy policy that rules out training on user data. No outside agent can call it, no status page or changelog was found, and its llms.txt and pricing file disagree on free limits and Max's price.

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

folk

  1. Don't plan to call folk from another agent. It answers only the owner's iMessage, Telegram or WhatsApp thread and iPhone app.
  2. Quote limits and prices from pricing.md and the terms, and note that llms.txt gives different free-tier limits.

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, folk or OpenDuet?

OpenDuet scores 49.5 (D) on agent readiness against folk's 19.7 (F), and leads in 6 of 7 scored categories.

Are folk and OpenDuet open source?

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

Other comparisons with folk or OpenDuet

Disclosure

folk 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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