# Del vs Leon > Leon scores 41 (E) to Del's 20.6 (F) for assistants that act in your accounts. Prices, MCP, x402, uptime and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/del-vs-leon - Markdown: https://www.anchorterminal.com/compare/del-vs-leon.md (~3,200 tokens) - Slim: https://www.anchorterminal.com/compare/del-vs-leon.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/del-vs-leon.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 - Updated: 2026-10-13 Leon scores 41 (E) on agent readiness against Del's 20.6 (F), and leads in 6 of 7 scored categories. Del leads on maintenance & community. Both do assistants that act in your accounts. - Del: grade F, 20.6/100, rank #991 of 1010. Markdown https://www.anchorterminal.com/tools/del.md · JSON https://www.anchorterminal.com/api/v1/tools/del.json - Leon: grade E, 41/100, rank #938 of 1010. Markdown https://www.anchorterminal.com/tools/leon.md · JSON https://www.anchorterminal.com/api/v1/tools/leon.json - Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md - All 834 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md ## Which one, for what ### Del (F) Good for: People who want tasks, notes, reminders and Gmail handled by text on the channel they already use. Ahead on: - Maintenance & community, 60 against 15 Watch for: No API, MCP server or A2A endpoint for an outside agent. ### 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: - Reliability, 32 against 25 - Schema & documentation, 33 against 10 - Agent ergonomics, 57 against 0 - Security & auth, 34 against 0 - Payments & pricing, 60 against 30 Also in its favour: - No key needed to call it - Open source 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 ## Score by category | Category | Weight | Del | Leon | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 25 | 32 | Leon +7 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 10 | 33 | Leon +23 | | Agent ergonomics | 13% (16.2 this run) | 0 | 57 | Leon +57 | | Security & auth | 14% (17.5 this run) | 0 | 34 | Leon +34 | | Payments & pricing | 10% (12.5 this run) | 30 | 60 | Leon +30 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 60 | 15 | Del +45 | | Transparency & trust | 7% (8.8 this run) | 57 | 60 | Leon +3 | | Negative events | ≤15 | 0 | 0 | | | **Total** | | **20.6 · F** | **41 · E** | | ## Facts side by side | Fact | Del | Leon | | --- | --- | --- | | Kind | Platform | Agent harness | | Vendor | Human Interface, Inc. | Louis Grenard (Leon AI) | | Hosted endpoint | no (local only) | no (local only) | | Transports | | | | Auth | OAuth or key | None | | Pricing | Paid | Free | | x402 | no | no | | Licence | Closed service under Del's Terms of Service (Human Interface, Inc., a Delaware corporation, last updated 5 August 2026). | MIT | | Read-only variant documented | no | no | | llms.txt | yes | no | | Last release | 2026-10-07 | 2023-05-01 | | Terms last updated | | no document linked | | Privacy policy last updated | | no document linked | | Customer content may train models | | | | Terms restrict automated access | | | | Terms restrict benchmarking | | | | Terms or service can change without notice | | | | Arbitration or class-action waiver | | | | Popularity | none | 18k stars | ## Verdicts **Del.** Del is a hosted texting assistant and task workspace across iMessage, WhatsApp, Telegram, SMS, Discord and Slack, with a near-daily public changelog and a card-free 14-day trial. No outside agent can call it, no status page or security contact was found, and recent updates let some email actions skip approval. **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. ## Before you call either ### Del 1. Don't plan to call Del from another agent. It answers only the owner's messaging threads and web workspace. 2. Tell the owner web browsing tasks are limited to five a month on Standard and unlimited on Pro. ### 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 ## Questions ### Which is better for AI agents, Del or Leon? Leon scores 41 (E) on agent readiness against Del's 20.6 (F), and leads in 6 of 7 scored categories. Del leads on maintenance & community. ### Are Del and Leon open source? No open-source release is listed for Del. Leon is open source (MIT). ## For agents - This comparison as JSON: https://www.anchorterminal.com/compare/del-vs-leon.json, and with the fewest tokens: https://www.anchorterminal.com/compare/del-vs-leon.min.md - Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "del", "b": "leon"}`. From a terminal: `anchor compare del leon` - Each listing in full: https://www.anchorterminal.com/api/v1/tools/del.json and https://www.anchorterminal.com/api/v1/tools/leon.json ## Other comparisons with Del or Leon - [asaply vs Del](https://www.anchorterminal.com/compare/asaply-vs-del.md) - [Asmi vs Del](https://www.anchorterminal.com/compare/asmi-vs-del.md) - [AstrBot vs Del](https://www.anchorterminal.com/compare/astrbot-vs-del.md) - [Boba vs Del](https://www.anchorterminal.com/compare/boba-vs-del.md) - [Boski vs Del](https://www.anchorterminal.com/compare/boski-vs-del.md) - [Brea vs Del](https://www.anchorterminal.com/compare/brea-vs-del.md) - [Caddy vs Del](https://www.anchorterminal.com/compare/caddy-app-vs-del.md) - [CowAgent vs Del](https://www.anchorterminal.com/compare/cowagent-vs-del.md) - [Del vs folk](https://www.anchorterminal.com/compare/del-vs-folk-nozomio.md) - [Del vs GAIA](https://www.anchorterminal.com/compare/del-vs-gaia.md) - [Del vs Grok Bot](https://www.anchorterminal.com/compare/del-vs-grok-bot.md) - [Del vs Haven](https://www.anchorterminal.com/compare/del-vs-haven.md) - [Del vs Hermes Agent](https://www.anchorterminal.com/compare/del-vs-hermes-agent.md) - [Del vs HireAlpha](https://www.anchorterminal.com/compare/del-vs-hirealpha.md) - [Del vs Instinct](https://www.anchorterminal.com/compare/del-vs-instinct.md) - [Del vs IronClaw](https://www.anchorterminal.com/compare/del-vs-ironclaw.md) - [Del vs Lindy](https://www.anchorterminal.com/compare/del-vs-lindy.md) - [Del vs nanobot](https://www.anchorterminal.com/compare/del-vs-nanobot.md) - [Del vs NanoClaw](https://www.anchorterminal.com/compare/del-vs-nanoclaw.md) - [Del vs Natura tinyNature](https://www.anchorterminal.com/compare/del-vs-natura.md) - [Del vs Dots](https://www.anchorterminal.com/compare/del-vs-openai-dots.md) - [Del vs OpenClaw](https://www.anchorterminal.com/compare/del-vs-openclaw.md) - [Del vs OpenInstinct](https://www.anchorterminal.com/compare/del-vs-openinstinct.md) - [Del vs Orbits](https://www.anchorterminal.com/compare/del-vs-orbits.md) - [Del vs Orchid](https://www.anchorterminal.com/compare/del-vs-orchid-ai.md) - [Del vs Pally](https://www.anchorterminal.com/compare/del-vs-pally.md) - [Del vs PicoClaw](https://www.anchorterminal.com/compare/del-vs-picoclaw.md) - [Del vs Poke](https://www.anchorterminal.com/compare/del-vs-poke.md) - [Del vs QwenPaw](https://www.anchorterminal.com/compare/del-vs-qwenpaw.md) - [Del vs szn](https://www.anchorterminal.com/compare/del-vs-szn.md) - [Del vs Tab](https://www.anchorterminal.com/compare/del-vs-tab-bot.md) - [Del vs Tomo](https://www.anchorterminal.com/compare/del-vs-tomo.md) - [Del vs Town](https://www.anchorterminal.com/compare/del-vs-town.md) - [Del vs Zapia](https://www.anchorterminal.com/compare/del-vs-zapia.md) - [Del vs ZeroClaw](https://www.anchorterminal.com/compare/del-vs-zeroclaw.md) - [Del vs Zo Computer](https://www.anchorterminal.com/compare/del-vs-zo-computer.md) - [AstrBot vs Leon](https://www.anchorterminal.com/compare/astrbot-vs-leon.md) - [Boski vs Leon](https://www.anchorterminal.com/compare/boski-vs-leon.md) - [Caddy vs Leon](https://www.anchorterminal.com/compare/caddy-app-vs-leon.md) - [CowAgent vs Leon](https://www.anchorterminal.com/compare/cowagent-vs-leon.md) - [folk vs Leon](https://www.anchorterminal.com/compare/folk-nozomio-vs-leon.md) - [GAIA vs Leon](https://www.anchorterminal.com/compare/gaia-vs-leon.md) - [Gemini Spark vs Leon](https://www.anchorterminal.com/compare/gemini-spark-vs-leon.md) - [Grok Bot vs Leon](https://www.anchorterminal.com/compare/grok-bot-vs-leon.md) - [Haven vs Leon](https://www.anchorterminal.com/compare/haven-vs-leon.md) - [Hermes Agent vs Leon](https://www.anchorterminal.com/compare/hermes-agent-vs-leon.md) - [Instinct vs Leon](https://www.anchorterminal.com/compare/instinct-vs-leon.md) - [IronClaw vs Leon](https://www.anchorterminal.com/compare/ironclaw-vs-leon.md) - [Leon vs Lindy](https://www.anchorterminal.com/compare/leon-vs-lindy.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 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) - [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 Gemini Spark](https://www.anchorterminal.com/compare/del-vs-gemini-spark.md) - [Del vs Wajo (Fo)](https://www.anchorterminal.com/compare/del-vs-wajo.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) - [Asmi vs Leon](https://www.anchorterminal.com/compare/asmi-vs-leon.md) - [Boba vs Leon](https://www.anchorterminal.com/compare/boba-vs-leon.md) - [Del vs Talorys](https://www.anchorterminal.com/compare/del-vs-talorys.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) - [Leon vs OpenInstinct](https://www.anchorterminal.com/compare/leon-vs-openinstinct.md) ## Disclosure - Del 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.