# Leon vs OpenDuet

> OpenDuet scores 49.5 (D) to Leon's 41.3 (E) for proactive personal assistants. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/leon-vs-openduet
- Markdown: https://www.anchorterminal.com/compare/leon-vs-openduet.md (~3,850 tokens)
- Slim: https://www.anchorterminal.com/compare/leon-vs-openduet.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/leon-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 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.

- Leon: grade E, 41.3/100, rank #1103 of 1239. Markdown https://www.anchorterminal.com/tools/leon.md · JSON https://www.anchorterminal.com/api/v1/tools/leon.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

### Leon (E)

Good 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)

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 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

| Category | Weight | Leon | OpenDuet | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 32 | 42 | OpenDuet +10 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 33 | 58 | OpenDuet +25 |
| Agent ergonomics | 13% (16.2 this run) | 57 | 52 | Leon +5 |
| Security & auth | 14% (17.5 this run) | 34 | 59 | OpenDuet +25 |
| Payments & pricing | 10% (12.5 this run) | 60 | 30 | Leon +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 15 | 37 | OpenDuet +22 |
| Transparency & trust | 7% (8.8 this run) | 63 | 68 | OpenDuet +5 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **41.3 · E** | **49.5 · D** | |

## Facts side by side

| Fact | Leon | OpenDuet |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Louis Grenard (Leon AI) | CopilotKit (Tawkit, Inc.) |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | None | OAuth or key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | MIT | 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 | no | no |
| Last release | 2023-05-01 | none |
| Terms last updated | no document linked | couldn't be read |
| Privacy policy last updated | no document linked | 2026-08-27 |
| Customer content may train models |  | couldn't be read |
| Terms restrict automated access |  | couldn't be read |
| Terms restrict benchmarking |  | couldn't be read |
| Terms or service can change without notice |  | couldn't be read |
| Arbitration or class-action waiver |  | couldn't be read |
| Popularity | 18k stars | 1.6k stars |
| Agent reviews | 1.8/5 (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).


## For agents

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

## Other comparisons with Leon 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 Leon](https://www.anchorterminal.com/compare/astrbot-vs-leon.md)
- [AstrBot vs OpenDuet](https://www.anchorterminal.com/compare/astrbot-vs-openduet.md)
- [Boski vs Leon](https://www.anchorterminal.com/compare/boski-vs-leon.md)
- [Boski vs OpenDuet](https://www.anchorterminal.com/compare/boski-vs-openduet.md)
- [Caddy vs Leon](https://www.anchorterminal.com/compare/caddy-app-vs-leon.md)
- [Caddy vs OpenDuet](https://www.anchorterminal.com/compare/caddy-app-vs-openduet.md)
- [Claude Duet vs Leon](https://www.anchorterminal.com/compare/claude-duet-vs-leon.md)
- [Claude Duet vs OpenDuet](https://www.anchorterminal.com/compare/claude-duet-vs-openduet.md)
- [CowAgent vs Leon](https://www.anchorterminal.com/compare/cowagent-vs-leon.md)
- [CowAgent vs OpenDuet](https://www.anchorterminal.com/compare/cowagent-vs-openduet.md)
- [folk vs Leon](https://www.anchorterminal.com/compare/folk-nozomio-vs-leon.md)
- [folk vs OpenDuet](https://www.anchorterminal.com/compare/folk-nozomio-vs-openduet.md)
- [GAIA vs Leon](https://www.anchorterminal.com/compare/gaia-vs-leon.md)
- [GAIA vs OpenDuet](https://www.anchorterminal.com/compare/gaia-vs-openduet.md)
- [Gemini Spark vs Leon](https://www.anchorterminal.com/compare/gemini-spark-vs-leon.md)
- [Gemini Spark vs OpenDuet](https://www.anchorterminal.com/compare/gemini-spark-vs-openduet.md)
- [Grok Bot vs Leon](https://www.anchorterminal.com/compare/grok-bot-vs-leon.md)
- [Grok Bot vs OpenDuet](https://www.anchorterminal.com/compare/grok-bot-vs-openduet.md)
- [Haven vs Leon](https://www.anchorterminal.com/compare/haven-vs-leon.md)
- [Haven vs OpenDuet](https://www.anchorterminal.com/compare/haven-vs-openduet.md)
- [Hermes Agent vs Leon](https://www.anchorterminal.com/compare/hermes-agent-vs-leon.md)
- [Hermes Agent vs OpenDuet](https://www.anchorterminal.com/compare/hermes-agent-vs-openduet.md)
- [Instinct vs Leon](https://www.anchorterminal.com/compare/instinct-vs-leon.md)
- [Instinct vs OpenDuet](https://www.anchorterminal.com/compare/instinct-vs-openduet.md)
- [IronClaw vs Leon](https://www.anchorterminal.com/compare/ironclaw-vs-leon.md)
- [IronClaw vs OpenDuet](https://www.anchorterminal.com/compare/ironclaw-vs-openduet.md)
- [Leon vs Lindy](https://www.anchorterminal.com/compare/leon-vs-lindy.md)
- [Leon vs Lobby](https://www.anchorterminal.com/compare/leon-vs-lobby-os.md)
- [Leon vs nanobot](https://www.anchorterminal.com/compare/leon-vs-nanobot.md)
- [Leon vs NanoClaw](https://www.anchorterminal.com/compare/leon-vs-nanoclaw.md)
- [Leon vs Dots](https://www.anchorterminal.com/compare/leon-vs-openai-dots.md)
- [Leon vs OpenClaw](https://www.anchorterminal.com/compare/leon-vs-openclaw.md)
- [Leon vs PicoClaw](https://www.anchorterminal.com/compare/leon-vs-picoclaw.md)
- [Leon vs Poke](https://www.anchorterminal.com/compare/leon-vs-poke.md)
- [Leon vs QwenPaw](https://www.anchorterminal.com/compare/leon-vs-qwenpaw.md)
- [Leon vs Tasker AI](https://www.anchorterminal.com/compare/leon-vs-tasker-ai.md)
- [Leon vs Town](https://www.anchorterminal.com/compare/leon-vs-town.md)
- [Leon vs ZeroClaw](https://www.anchorterminal.com/compare/leon-vs-zeroclaw.md)
- [Leon vs Zo Computer](https://www.anchorterminal.com/compare/leon-vs-zo-computer.md)
- [Lindy vs OpenDuet](https://www.anchorterminal.com/compare/lindy-vs-openduet.md)
- [nanobot vs OpenDuet](https://www.anchorterminal.com/compare/nanobot-vs-openduet.md)
- [NanoClaw vs OpenDuet](https://www.anchorterminal.com/compare/nanoclaw-vs-openduet.md)
- [Dots vs OpenDuet](https://www.anchorterminal.com/compare/openai-dots-vs-openduet.md)
- [OpenClaw vs OpenDuet](https://www.anchorterminal.com/compare/openclaw-vs-openduet.md)
- [OpenDuet vs PicoClaw](https://www.anchorterminal.com/compare/openduet-vs-picoclaw.md)
- [OpenDuet vs Poke](https://www.anchorterminal.com/compare/openduet-vs-poke.md)
- [OpenDuet vs QwenPaw](https://www.anchorterminal.com/compare/openduet-vs-qwenpaw.md)
- [OpenDuet vs Tasker AI](https://www.anchorterminal.com/compare/openduet-vs-tasker-ai.md)
- [OpenDuet vs Town](https://www.anchorterminal.com/compare/openduet-vs-town.md)
- [OpenDuet vs ZeroClaw](https://www.anchorterminal.com/compare/openduet-vs-zeroclaw.md)
- [OpenDuet vs Zo Computer](https://www.anchorterminal.com/compare/openduet-vs-zo-computer.md)
- [Asmi vs Leon](https://www.anchorterminal.com/compare/asmi-vs-leon.md)
- [Atticus vs Leon](https://www.anchorterminal.com/compare/atticus-vs-leon.md)
- [Atticus vs OpenDuet](https://www.anchorterminal.com/compare/atticus-vs-openduet.md)
- [Boba vs Leon](https://www.anchorterminal.com/compare/boba-vs-leon.md)
- [DeepTutor vs Leon](https://www.anchorterminal.com/compare/deeptutor-vs-leon.md)
- [DeepTutor vs OpenDuet](https://www.anchorterminal.com/compare/deeptutor-vs-openduet.md)
- [Hark Pro vs Leon](https://www.anchorterminal.com/compare/hark-pro-vs-leon.md)
- [Hark Pro vs OpenDuet](https://www.anchorterminal.com/compare/hark-pro-vs-openduet.md)
- [LearnHarness vs Leon](https://www.anchorterminal.com/compare/learnharness-vs-leon.md)
- [LearnHarness vs OpenDuet](https://www.anchorterminal.com/compare/learnharness-vs-openduet.md)
- [Leon vs Tab](https://www.anchorterminal.com/compare/leon-vs-tab-bot.md)
- [Leon vs Talorys](https://www.anchorterminal.com/compare/leon-vs-talorys.md)
- [OpenDuet vs Talorys](https://www.anchorterminal.com/compare/openduet-vs-talorys.md)
- [asaply vs Leon](https://www.anchorterminal.com/compare/asaply-vs-leon.md)
- [Brea vs Leon](https://www.anchorterminal.com/compare/brea-vs-leon.md)
- [Del vs Leon](https://www.anchorterminal.com/compare/del-vs-leon.md)
- [HireAlpha vs Leon](https://www.anchorterminal.com/compare/hirealpha-vs-leon.md)
- [Leon vs Natura tinyNature](https://www.anchorterminal.com/compare/leon-vs-natura.md)
- [Leon vs Orbits](https://www.anchorterminal.com/compare/leon-vs-orbits.md)
- [Leon vs Orchid](https://www.anchorterminal.com/compare/leon-vs-orchid-ai.md)
- [Leon vs Pally](https://www.anchorterminal.com/compare/leon-vs-pally.md)
- [Leon vs szn](https://www.anchorterminal.com/compare/leon-vs-szn.md)
- [Leon vs Tomo](https://www.anchorterminal.com/compare/leon-vs-tomo.md)
- [Leon vs Wajo (Fo)](https://www.anchorterminal.com/compare/leon-vs-wajo.md)
- [Leon vs Zapia](https://www.anchorterminal.com/compare/leon-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)
- [Leon vs OpenInstinct](https://www.anchorterminal.com/compare/leon-vs-openinstinct.md)

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp