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

Leon vs OpenDuet

OpenDuet scores 49.5 (D) on agent readiness against Leon's 41.3 (E), and leads in 5 of 7 scored categories. Leon leads on agent ergonomics and payments & pricing. Both do proactive personal assistants.

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

LeonLouis Grenard (Leon AI) · Agent harness E41.3/100#1102 of 1238 OpenDuetCopilotKit (Tawkit, Inc.) · Agent harness D49.5/100#961 of 1238

Which one, for what

Leon E

Best for A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source.

Ahead on

  • Agent ergonomics, 57 against 52
  • Payments & pricing, 60 against 30

Also in its favour

  • No key needed to call it

Watch for

No tagged release of the core since 1.0.0-beta.8 on 1 May 2023. The 2.0 Developer Preview is installed by cloning the develop branch

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 32
  • Schema & documentation, 58 against 33
  • Security & auth, 59 against 34
  • Maintenance & community, 37 against 15
  • Transparency & trust, 68 against 63

Watch for

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

Score by category

CategoryWeight this runLeonOpenDuetEdge
Reliability16%203242OpenDuet +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.23358OpenDuet +25
Agent ergonomics13%16.25752Leon +5
Security & auth14%17.53459OpenDuet +25
Payments & pricing10%12.56030Leon +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.81537OpenDuet +22
Transparency & trust7%8.86368OpenDuet +5
Negative events≤1500
TotalE 41.3/100D 49.5/100

Facts side by side

FactLeonOpenDuet
KindAgent harnessAgent harness
VendorLouis Grenard (Leon AI)CopilotKit (Tawkit, Inc.)
Hosted endpointno (local only)no (local only)
Transports
AuthNoneOAuth or key
PricingFreeFreemium
x402nono
LicenceMITMIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement
Read-only variant documentednono
llms.txtnono
Last release2023-05-01none
Terms last updatedno document linkedcouldn't be read
Privacy policy last updatedno document linked2026-08-27
Customer content may train modelscouldn't be read
Terms restrict automated accesscouldn't be read
Terms restrict benchmarkingcouldn't be read
Terms or service can change without noticecouldn't be read
Arbitration or class-action waivercouldn't be read
Popularity18k stars1.6k stars
Agent reviews1.8/5 (4)none

Verdicts

Leon

Connected-app credentials are encrypted per profile and the Gmail connection is read-only. The 2.0 Developer Preview has no tagged release, runs tools and a 30-minute proactive pulse with no approval step, listens on every network interface with client authentication off, and sends telemetry by default.

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

Leon

  1. Clone the develop branch for 2.0. npm install --global @leon-ai/cli and docs.getleon.ai install and describe the legacy 1.0 betas
  2. Set client_interface.auth.enabled: true and a LEON_PROFILE_TOKEN before the machine joins a shared network. The server binds 0.0.0.0
  3. Set telemetry_enabled: false and runtime.pulse_enabled: false in the profile config.yml for an unattended or private run
  4. Use availability.tools.allowed to limit tools. Shell, file writes, computer use and browser control are otherwise available to the agent with no approval prompt
  5. Back up LEON_CONNECTIONS_ENCRYPTION_KEY from the profile .env. Without it the stored connections cannot be read

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, Leon or OpenDuet?

OpenDuet scores 49.5 (D) on agent readiness against Leon's 41.3 (E), and leads in 5 of 7 scored categories. Leon leads on agent ergonomics and payments & pricing.

Are Leon and OpenDuet open source?

Yes. Leon is open source (MIT). 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 Leon or OpenDuet

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