{ "data": { "a": { "slug": "gemini-spark", "name": "Gemini Spark", "vendor": "Google LLC", "vendorUrl": "https://gemini.google/us/overview/agent/spark/", "kind": "platform", "category": "personal-assistants", "summary": "Gemini Spark is Google's hosted personal AI agent inside the Gemini app. It runs tasks and schedules in Google's cloud across Gmail, Calendar, Drive and other connected apps for Google AI Pro and Ultra subscribers.", "url": "https://www.anchorterminal.com/tools/gemini-spark", "markdownUrl": "https://www.anchorterminal.com/tools/gemini-spark.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/gemini-spark.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/gemini-spark.json", "license": "Proprietary hosted service under the Google Terms of Service", "transports": [], "packages": [], "auth": "oauth", "authNotes": "No credential for an outside agent exists, because no public API was found. A person signs in to the Gemini app with a personal Google Account and needs a Google AI Pro or Ultra subscription (https://support.google.com/gemini/answer/17094507). Connected apps are off by default and are switched on in settings (https://gemini.google/us/overview/agent/spark/). Third-party and custom apps are linked to the Google Account and can be unlinked in Connected Apps settings or on the account's Linked apps page. A custom MCP server that lacks Dynamic Client Registration takes credentials the user enters (https://support.google.com/gemini/answer/17209137). Google tells users not to type sign-in or payment details into a task thread and to enter them on the web page in take control mode (https://support.google.com/gemini/answer/17094507).", "pricing": "paid", "pricingNotes": "Spark needs a Google AI Pro or Ultra subscription. US prices are $19.99 a month for Pro and $99.99 or $199.99 a month for Ultra, with Spark use counted against compute-based limits that refresh every five hours up to a weekly limit (https://gemini.google/us/subscriptions/; https://support.google.com/gemini/answer/16275805). The subscriptions page lists Spark under Ultra as first access in select countries, while the help page names Pro and Ultra. No free tier includes Spark. The page links a two-month trial offer whose terms were not read (checked 2026-10-12).", "priceSummary": "$19.99 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the pages read, and no public API to carry one (checked 2026-10-12).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-12" }, "docsUrl": "https://support.google.com/gemini/answer/17094507", "capabilities": [ "assistant.proactive", "assistant.accounts", "assistant.memory", "agent.mcp-client" ], "tags": [ "hosted", "consumer", "closed-source", "no-api", "beta", "ios", "android", "macos", "web", "browser-agent", "approvals", "mcp-client", "subscription", "trains-on-data-by-default" ], "lastRelease": "2026-05-19", "graded": true, "anchor": { "graded": true, "score": 24.5, "grade": "F", "agentReady": false, "rank": 974, "ranked": true, "rankOf": 986, "categoryRank": 18, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 9, "maintenance": 17, "payments": 10, "reliability": 14, "schema": 17, "security": 60, "transparency": 49 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-12" }, "negative": 0, "verdict": "Google's help pages state what Spark confirms before doing, how to delete its remote browser and code data, and the risks of prompt injection. Spark has no public API, Google calls it experimental, and it runs only with Keep Activity on, the setting under which chats are used for model training and human review.", "bestFor": "A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.", "strengths": [ "Google says Spark asks for confirmation before sending communications, modifying data, making purchases, submitting web forms and using Sign in with Google", "Connected apps are off by default, and write actions through a custom MCP server need manual confirmation, per Google's help pages", "The help page names prompt injection, gives four examples of what an injected instruction could do, and says the safeguards do not guarantee protection", "Each task thread has a work panel listing completed and planned steps, files read or updated, schedules, and the skills and apps used", "Published limits of 15 running tasks and 50 active schedules, and plan prices of $19.99 to $199.99 a month in the US" ], "weaknesses": [ "No public API, SDK or MCP server for an outside agent was found. Spark is reached in the Gemini mobile app, the Mac app and gemini.google.com", "Google's help page calls Spark an experimental feature in early development, and the Privacy Hub calls it beta", "Spark runs only with Keep Activity on. With that setting on, Google uses activity to train generative AI models and human reviewers read some chats", "Chats already reviewed by human reviewers are kept for up to three years and are not deleted when the user deletes activity", "Google states that Gemini can perform bulk actions on private Google Tasks without confirmation", "The remote browser saves cookies holding website sign-in details for later sessions until the user deletes them or turns Spark off", "No status page or SLA for Spark was linked from the pages read, and the bug bounty site linked from Google's terms is drawn by script and was unread" ], "agentNotes": [ "Do not plan an integration against Spark. No public API or MCP server was found, and a person must hold a Google AI Pro or Ultra subscription", "Expect a confirmation request before sends, edits, purchases and web form submissions, and note that bulk changes to private Google Tasks run without one", "Delete remote browser data and remote code execution data in Gemini Spark Settings after a sensitive session. Deleting a task thread or Gemini Apps activity does not remove them", "Keep within 15 running tasks and 50 active schedules. A schedule does not run when 15 tasks are running or the usage limit is reached", "Treat every safety statement here as Google's own description. None was tested, and no message was sent to the service" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "F", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 24.5 } ], "editorialScores": { "ergonomics": 9, "maintenance": 17, "payments": 10, "reliability": 14, "schema": 17, "security": 60, "transparency": 44 }, "provenanceScore": 54 }, "letme": { "capability": "https://letme.dev/assistant.proactive", "tool": "https://letme.dev/gemini-spark" }, "area": "frameworks", "unitPrices": [ { "item": "Google AI Pro", "unit": "month", "usd": 19.99, "note": "US price, includes Spark with 4 times the standard usage limit" }, { "item": "Google AI Ultra (5x)", "unit": "month", "usd": 99.99, "note": "US price, 5 times the Pro usage limit" }, { "item": "Google AI Ultra (20x)", "unit": "month", "usd": 199.99, "note": "US price, 20 times the Pro usage limit" } ], "provenance": { "legalEntity": "Google LLC", "domain": "gemini.google", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "https://policies.google.com/terms", "privacy": "https://support.google.com/gemini/answer/13594961", "statusPage": "", "changelog": "https://gemini.google/us/release-notes/", "securityTxt": "none", "checked": "2026-10-12", "notes": [ "The Gemini Apps Privacy Notice says Gemini Apps are supplied by Google Ireland Limited in the European Economic Area and Switzerland and by Google LLC everywhere else. Spark is not available in the European Economic Area or Switzerland.", "Google's service-specific terms page lists Gemini Apps under the Google Terms of Service (effective 30 July 2026), the Generative AI Prohibited Use Policy and the Gemini Apps Agentic Calling Additional Terms of Service. The Generative AI Additional Terms of Service that the subscriptions page links say they stopped applying on 22 May 2024.", "The privacy link is the Gemini Apps Privacy Hub, which holds the Gemini Apps Privacy Notice (last updated 29 June 2026) and the Spark data questions (hub last updated 24 September 2026). The notice supplements the Google Privacy Policy at policies.google.com/privacy (effective 12 October 2026).", "No status page for Gemini Apps or Spark was linked from any page read.", "The release notes are the Gemini app's. Their only entry about Spark is dated 19 May 2026.", "gemini.google/.well-known/security.txt answered 404. Google's terms link bughunters.google.com as its safety and bug testing programmes. That site's home page is drawn by script and was unread.", "gemini.google is a name under Google's own .google top-level domain. Its registration date was not looked up.", "policies.google.com/robots.txt answered 404, read as no rules. The robots.txt files of gemini.google, support.google.com and bughunters.google.com allow the pages read." ], "score": 54 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/gemini-spark.json" }, "answer": "Leon scores 41 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security \u0026 auth.", "b": { "slug": "leon", "name": "Leon", "vendor": "Louis Grenard (Leon AI)", "vendorUrl": "https://getleon.ai", "kind": "harness", "category": "personal-assistants", "summary": "Open-source personal assistant by Louis Grenard that the owner runs on their own machine or server. The 2.0 Developer Preview adds an agent loop with tools, layered memory, computer use and a proactive pulse, reached through a web app.", "url": "https://www.anchorterminal.com/tools/leon", "markdownUrl": "https://www.anchorterminal.com/tools/leon.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/leon.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/leon.json", "repo": "https://github.com/leon-ai/leon", "license": "MIT", "transports": [], "packages": [ { "registry": "npm", "name": "@leon-ai/cli" } ], "auth": "none", "authNotes": "No account. The web app and the Socket.IO and HTTP interfaces accept any client unless `client_interface.auth.enabled` is set, after which a `\u003cprofile\u003e:\u003ctoken\u003e` credential from `LEON_PROFILE_TOKEN` is required. Model provider keys go in the profile `.env`. Connected apps use OAuth or a pasted token.", "pricing": "free", "pricingNotes": "Free and MIT, with nothing to buy. The project takes sponsorship. Model usage is billed by the provider the owner picks, or costs nothing with a local llama.cpp model.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the README, the context documents or the source (checked 2026-10-12).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 17568, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-12" }, "docsUrl": "https://github.com/leon-ai/leon/blob/develop/README.md", "capabilities": [ "assistant.proactive", "assistant.self-hosted", "assistant.memory", "assistant.accounts" ], "tags": [ "open-source", "self-hosted", "local", "free", "no-card", "typescript", "beta", "telemetry-default-on" ], "lastRelease": "2023-05-01", "graded": true, "anchor": { "graded": true, "score": 41, "grade": "E", "agentReady": false, "rank": 934, "ranked": true, "rankOf": 986, "categoryRank": 14, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 57, "maintenance": 15, "payments": 60, "reliability": 32, "schema": 33, "security": 34, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-12" }, "negative": 0, "verdict": "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.", "bestFor": "A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source.", "strengths": [ "MIT licence, with the whole server, web app, tools and skills in one public repository", "Connected-app credentials are stored per profile with AES-256-GCM, and the Gmail connection asks only for the `gmail.readonly` scope", "Runs with a local llama.cpp model or any of 11 hosted providers, so the owner chooses which company sees the content", "Tool allow and disable lists, a configurable iteration limit (256 by default) and per-profile tool-call logs", "At least 200 commits between 25 September and 12 October 2026, with a fresh-install check passing on develop three times a week" ], "weaknesses": [ "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", "No approval step before a tool call. Shell commands pass a blocklist of patterns, and the proactive pulse is on by default and runs one task every 30 minutes", "The server listens on 0.0.0.0 and client authentication is off in the sample config", "Telemetry is on in the sample config and posts an instance ID, versions and hardware details to telemetry.getleon.ai. The README and the docs pages read do not describe it", "No `SECURITY.md`, security.txt, privacy policy or 2.0 documentation, and no messaging-app channel or MCP client on the develop branch" ], "agentNotes": [ "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", "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", "Set `telemetry_enabled: false` and `runtime.pulse_enabled: false` in the profile `config.yml` for an unattended or private run", "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", "Back up `LEON_CONNECTIONS_ENCRYPTION_KEY` from the profile `.env`. Without it the stored connections cannot be read" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 41 } ], "editorialScores": { "ergonomics": 57, "maintenance": 15, "payments": 60, "reliability": 32, "schema": 33, "security": 34, "transparency": 52 }, "provenanceScore": 68 }, "connect": { "install": "git clone https://github.com/leon-ai/leon.git \u0026\u0026 cd leon \u0026\u0026 npm install --global pnpm@latest \u0026\u0026 pnpm install \u0026\u0026 pnpm start" }, "letme": { "capability": "https://letme.dev/assistant.proactive", "tool": "https://letme.dev/leon" }, "area": "frameworks", "provenance": { "legalEntity": "No legal entity found. Copyright Louis Grenard", "domain": "getleon.ai", "domainRegistered": "2018-02-16", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/leon-ai/leon/blob/develop/CHANGELOG.md", "securityTxt": "none", "checked": "2026-10-12", "notes": [ "`LICENSE.md` and the footer of getleon.ai read Copyright 2019 to present Louis Grenard. No company or foundation is named on the pages read.", "No terms of service or privacy policy was found on getleon.ai, docs.getleon.ai or in the repository, so no link is given and the MIT licence stands in.", "getleon.ai/.well-known/security.txt returns 404, and the repository has no `SECURITY.md`. The GitHub API lists no published security advisory.", "RDAP for getleon.ai gives a registration date of 2018-02-16.", "The assistant answers on the owner's own host. The only vendor endpoint the source names is telemetry.getleon.ai, which receives telemetry.", "`CHANGELOG.md` ends at 1.0.0-beta.8 of 1 May 2023. Changes to the 2.0 Developer Preview are recorded only as commits." ], "score": 68 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/leon.json" }, "facts": [ { "a": "Platform", "b": "Agent harness", "name": "Kind" }, { "a": "Google LLC", "b": "Louis Grenard (Leon AI)", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "", "name": "Transports" }, { "a": "OAuth", "b": "None", "name": "Auth" }, { "a": "Paid", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary hosted service under the Google Terms of Service", "b": "MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "no", "name": "llms.txt" }, { "a": "2026-05-19", "b": "2023-05-01", "name": "Last release" }, { "a": "2026-07-30", "b": "no document linked", "name": "Terms last updated" }, { "a": "2026-09-24", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "yes, with an opt-out", "b": "", "name": "Customer content may train models" }, { "a": "yes", "b": "", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "18k stars", "name": "Popularity" } ], "faq": [ { "answer": "Leon scores 41 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security \u0026 auth.", "question": "Which is better for AI agents, Gemini Spark or Leon?" }, { "answer": "No open-source release is listed for Gemini Spark. Leon is open source (MIT).", "question": "Are Gemini Spark and Leon open source?" } ], "goodFor": [ { "aheadOn": [ "Security \u0026 auth, 60 against 34" ], "also": null, "goodFor": "A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.", "slug": "gemini-spark", "watchFor": "No public API, SDK or MCP server for an outside agent was found. Spark is reached in the Gemini mobile app, the Mac app and gemini.google.com" }, { "aheadOn": [ "Reliability, 32 against 14", "Schema \u0026 documentation, 33 against 17", "Agent ergonomics, 57 against 9", "Payments \u0026 pricing, 60 against 10", "Transparency \u0026 trust, 60 against 49" ], "also": [ "No key needed to call it", "Free to start without a card", "Open source" ], "goodFor": "A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source.", "slug": "leon", "watchFor": "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" } ], "job": { "capability": "assistant.proactive", "name": "Assistant proactive" }, "others": [ { "json": "https://www.anchorterminal.com/compare/astrbot-vs-gemini-spark.json", "title": "AstrBot vs Gemini Spark", "url": "https://www.anchorterminal.com/compare/astrbot-vs-gemini-spark" }, { "json": "https://www.anchorterminal.com/compare/astrbot-vs-leon.json", "title": "AstrBot vs Leon", "url": "https://www.anchorterminal.com/compare/astrbot-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/cowagent-vs-gemini-spark.json", "title": "CowAgent vs Gemini Spark", "url": "https://www.anchorterminal.com/compare/cowagent-vs-gemini-spark" }, { "json": "https://www.anchorterminal.com/compare/cowagent-vs-leon.json", "title": "CowAgent vs Leon", "url": "https://www.anchorterminal.com/compare/cowagent-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/gaia-vs-gemini-spark.json", "title": "GAIA vs Gemini Spark", "url": "https://www.anchorterminal.com/compare/gaia-vs-gemini-spark" }, { "json": "https://www.anchorterminal.com/compare/gaia-vs-leon.json", "title": "GAIA vs Leon", "url": "https://www.anchorterminal.com/compare/gaia-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-grok-bot.json", "title": "Gemini Spark vs Grok Bot", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-grok-bot" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-haven.json", "title": "Gemini Spark vs Haven", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-haven" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-hermes-agent.json", "title": "Gemini Spark vs Hermes Agent", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-hermes-agent" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-instinct.json", "title": "Gemini Spark vs Instinct", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-instinct" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-ironclaw.json", "title": "Gemini Spark vs IronClaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-ironclaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-lindy.json", "title": "Gemini Spark vs Lindy", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-lindy" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-nanobot.json", "title": "Gemini Spark vs nanobot", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-nanobot" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-nanoclaw.json", "title": "Gemini Spark vs NanoClaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-nanoclaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-openai-dots.json", "title": "Gemini Spark vs Dots", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-openai-dots" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-openclaw.json", "title": "Gemini Spark vs OpenClaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-openclaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-picoclaw.json", "title": "Gemini Spark vs PicoClaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-picoclaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-poke.json", "title": "Gemini Spark vs Poke", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-poke" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-qwenpaw.json", "title": "Gemini Spark vs QwenPaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-qwenpaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-zeroclaw.json", "title": "Gemini Spark vs ZeroClaw", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-zeroclaw" }, { "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-zo-computer.json", "title": "Gemini Spark vs Zo Computer", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-zo-computer" }, { "json": "https://www.anchorterminal.com/compare/grok-bot-vs-leon.json", "title": "Grok Bot vs Leon", "url": "https://www.anchorterminal.com/compare/grok-bot-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/haven-vs-leon.json", "title": "Haven vs Leon", "url": "https://www.anchorterminal.com/compare/haven-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/hermes-agent-vs-leon.json", "title": "Hermes Agent vs Leon", "url": "https://www.anchorterminal.com/compare/hermes-agent-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/instinct-vs-leon.json", "title": "Instinct vs Leon", "url": "https://www.anchorterminal.com/compare/instinct-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/ironclaw-vs-leon.json", "title": "IronClaw vs Leon", "url": "https://www.anchorterminal.com/compare/ironclaw-vs-leon" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-lindy.json", "title": "Leon vs Lindy", "url": "https://www.anchorterminal.com/compare/leon-vs-lindy" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-nanobot.json", "title": "Leon vs nanobot", "url": "https://www.anchorterminal.com/compare/leon-vs-nanobot" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-nanoclaw.json", "title": "Leon vs NanoClaw", "url": "https://www.anchorterminal.com/compare/leon-vs-nanoclaw" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-openai-dots.json", "title": "Leon vs Dots", "url": "https://www.anchorterminal.com/compare/leon-vs-openai-dots" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-openclaw.json", "title": "Leon vs OpenClaw", "url": "https://www.anchorterminal.com/compare/leon-vs-openclaw" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-picoclaw.json", "title": "Leon vs PicoClaw", "url": "https://www.anchorterminal.com/compare/leon-vs-picoclaw" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-poke.json", "title": "Leon vs Poke", "url": "https://www.anchorterminal.com/compare/leon-vs-poke" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-qwenpaw.json", "title": "Leon vs QwenPaw", "url": "https://www.anchorterminal.com/compare/leon-vs-qwenpaw" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-zeroclaw.json", "title": "Leon vs ZeroClaw", "url": "https://www.anchorterminal.com/compare/leon-vs-zeroclaw" }, { "json": "https://www.anchorterminal.com/compare/leon-vs-zo-computer.json", "title": "Leon vs Zo Computer", "url": "https://www.anchorterminal.com/compare/leon-vs-zo-computer" } ], "scores": [ { "by": 18, "edge": "leon", "gemini-spark": 14, "key": "reliability", "leon": 32, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 16, "edge": "leon", "gemini-spark": 17, "key": "schema", "leon": 33, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 48, "edge": "leon", "gemini-spark": 9, "key": "ergonomics", "leon": 57, "name": "Agent ergonomics", "weight": 13 }, { "by": 26, "edge": "gemini-spark", "gemini-spark": 60, "key": "security", "leon": 34, "name": "Security \u0026 auth", "weight": 14 }, { "by": 50, "edge": "leon", "gemini-spark": 10, "key": "payments", "leon": 60, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 2, "edge": "gemini-spark", "gemini-spark": 17, "key": "maintenance", "leon": 15, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 11, "edge": "leon", "gemini-spark": 49, "key": "transparency", "leon": 60, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Leon scores 41 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security \u0026 auth. Both do assistant proactive.", "verdicts": { "gemini-spark": "Google's help pages state what Spark confirms before doing, how to delete its remote browser and code data, and the risks of prompt injection. Spark has no public API, Google calls it experimental, and it runs only with Keep Activity on, the setting under which chats are used for model training and human review.", "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/gemini-spark-vs-leon", "json": "https://www.anchorterminal.com/compare/gemini-spark-vs-leon.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/gemini-spark-vs-leon.md", "slim": "https://www.anchorterminal.com/compare/gemini-spark-vs-leon.min.md" }, "markdown": "Leon scores 41 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security \u0026 auth. Both do assistant proactive.\n\n- Gemini Spark: grade F, 24.5/100, rank #974 of 986. Markdown https://www.anchorterminal.com/tools/gemini-spark.md · JSON https://www.anchorterminal.com/api/v1/tools/gemini-spark.json\n- Leon: grade E, 41/100, rank #934 of 986. Markdown https://www.anchorterminal.com/tools/leon.md · JSON https://www.anchorterminal.com/api/v1/tools/leon.json\n- Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md\n- All 190 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md\n\n## Which one, for what\n\n### Gemini Spark (F)\n\nGood for: A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.\n\nAhead on:\n- Security \u0026 auth, 60 against 34\n\nWatch for: No public API, SDK or MCP server for an outside agent was found. Spark is reached in the Gemini mobile app, the Mac app and gemini.google.com\n\n### Leon (E)\n\nGood for: A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source.\n\nAhead on:\n- Reliability, 32 against 14\n- Schema \u0026 documentation, 33 against 17\n- Agent ergonomics, 57 against 9\n- Payments \u0026 pricing, 60 against 10\n- Transparency \u0026 trust, 60 against 49\n\nAlso in its favour:\n- No key needed to call it\n- Free to start without a card\n- Open source\n\nWatch 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\n\n\n## Score by category\n\n| Category | Weight | Gemini Spark | Leon | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 14 | 32 | Leon +18 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 17 | 33 | Leon +16 |\n| Agent ergonomics | 13% (16.2 this run) | 9 | 57 | Leon +48 |\n| Security \u0026 auth | 14% (17.5 this run) | 60 | 34 | Gemini Spark +26 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 10 | 60 | Leon +50 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 17 | 15 | Gemini Spark +2 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 49 | 60 | Leon +11 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **24.5 · F** | **41 · E** | |\n\n## Facts side by side\n\n| Fact | Gemini Spark | Leon |\n| --- | --- | --- |\n| Kind | Platform | Agent harness |\n| Vendor | Google LLC | Louis Grenard (Leon AI) |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | |\n| Auth | OAuth | None |\n| Pricing | Paid | Free |\n| x402 | no | no |\n| Licence | Proprietary hosted service under the Google Terms of Service | MIT |\n| Read-only variant documented | no | no |\n| llms.txt | no | no |\n| Last release | 2026-05-19 | 2023-05-01 |\n| Terms last updated | 2026-07-30 | no document linked |\n| Privacy policy last updated | 2026-09-24 | no document linked |\n| Customer content may train models | yes, with an opt-out | |\n| Terms restrict automated access | yes | |\n| Terms restrict benchmarking | not found in the text | |\n| Terms or service can change without notice | not found in the text | |\n| Arbitration or class-action waiver | not found in the text | |\n| Popularity | none | 18k stars |\n\n## Verdicts\n\n**Gemini Spark.** Google's help pages state what Spark confirms before doing, how to delete its remote browser and code data, and the risks of prompt injection. Spark has no public API, Google calls it experimental, and it runs only with Keep Activity on, the setting under which chats are used for model training and human review.\n\n**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.\n\n## Before you call either\n\n### Gemini Spark\n\n1. Do not plan an integration against Spark. No public API or MCP server was found, and a person must hold a Google AI Pro or Ultra subscription\n2. Expect a confirmation request before sends, edits, purchases and web form submissions, and note that bulk changes to private Google Tasks run without one\n3. Delete remote browser data and remote code execution data in Gemini Spark Settings after a sensitive session. Deleting a task thread or Gemini Apps activity does not remove them\n4. Keep within 15 running tasks and 50 active schedules. A schedule does not run when 15 tasks are running or the usage limit is reached\n5. Treat every safety statement here as Google's own description. None was tested, and no message was sent to the service\n\n### Leon\n\n1. 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\n2. 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\n3. Set `telemetry_enabled: false` and `runtime.pulse_enabled: false` in the profile `config.yml` for an unattended or private run\n4. 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\n5. Back up `LEON_CONNECTIONS_ENCRYPTION_KEY` from the profile `.env`. Without it the stored connections cannot be read\n\n## Questions\n\n### Which is better for AI agents, Gemini Spark or Leon?\n\nLeon scores 41 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security \u0026 auth.\n\n### Are Gemini Spark and Leon open source?\n\nNo open-source release is listed for Gemini Spark. Leon is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/gemini-spark-vs-leon.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gemini-spark-vs-leon.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"gemini-spark\", \"b\": \"leon\"}`. From a terminal: `anchor compare gemini-spark leon`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gemini-spark.json and https://www.anchorterminal.com/api/v1/tools/leon.json\n\n## Other comparisons with Gemini Spark or Leon\n\n- [AstrBot vs Gemini Spark](https://www.anchorterminal.com/compare/astrbot-vs-gemini-spark.md)\n- [AstrBot vs Leon](https://www.anchorterminal.com/compare/astrbot-vs-leon.md)\n- [CowAgent vs Gemini Spark](https://www.anchorterminal.com/compare/cowagent-vs-gemini-spark.md)\n- [CowAgent vs Leon](https://www.anchorterminal.com/compare/cowagent-vs-leon.md)\n- [GAIA vs Gemini Spark](https://www.anchorterminal.com/compare/gaia-vs-gemini-spark.md)\n- [GAIA vs Leon](https://www.anchorterminal.com/compare/gaia-vs-leon.md)\n- [Gemini Spark vs Grok Bot](https://www.anchorterminal.com/compare/gemini-spark-vs-grok-bot.md)\n- [Gemini Spark vs Haven](https://www.anchorterminal.com/compare/gemini-spark-vs-haven.md)\n- [Gemini Spark vs Hermes Agent](https://www.anchorterminal.com/compare/gemini-spark-vs-hermes-agent.md)\n- [Gemini Spark vs Instinct](https://www.anchorterminal.com/compare/gemini-spark-vs-instinct.md)\n- [Gemini Spark vs IronClaw](https://www.anchorterminal.com/compare/gemini-spark-vs-ironclaw.md)\n- [Gemini Spark vs Lindy](https://www.anchorterminal.com/compare/gemini-spark-vs-lindy.md)\n- [Gemini Spark vs nanobot](https://www.anchorterminal.com/compare/gemini-spark-vs-nanobot.md)\n- [Gemini Spark vs NanoClaw](https://www.anchorterminal.com/compare/gemini-spark-vs-nanoclaw.md)\n- [Gemini Spark vs Dots](https://www.anchorterminal.com/compare/gemini-spark-vs-openai-dots.md)\n- [Gemini Spark vs OpenClaw](https://www.anchorterminal.com/compare/gemini-spark-vs-openclaw.md)\n- [Gemini Spark vs PicoClaw](https://www.anchorterminal.com/compare/gemini-spark-vs-picoclaw.md)\n- [Gemini Spark vs Poke](https://www.anchorterminal.com/compare/gemini-spark-vs-poke.md)\n- [Gemini Spark vs QwenPaw](https://www.anchorterminal.com/compare/gemini-spark-vs-qwenpaw.md)\n- [Gemini Spark vs ZeroClaw](https://www.anchorterminal.com/compare/gemini-spark-vs-zeroclaw.md)\n- [Gemini Spark vs Zo Computer](https://www.anchorterminal.com/compare/gemini-spark-vs-zo-computer.md)\n- [Grok Bot vs Leon](https://www.anchorterminal.com/compare/grok-bot-vs-leon.md)\n- [Haven vs Leon](https://www.anchorterminal.com/compare/haven-vs-leon.md)\n- [Hermes Agent vs Leon](https://www.anchorterminal.com/compare/hermes-agent-vs-leon.md)\n- [Instinct vs Leon](https://www.anchorterminal.com/compare/instinct-vs-leon.md)\n- [IronClaw vs Leon](https://www.anchorterminal.com/compare/ironclaw-vs-leon.md)\n- [Leon vs Lindy](https://www.anchorterminal.com/compare/leon-vs-lindy.md)\n- [Leon vs nanobot](https://www.anchorterminal.com/compare/leon-vs-nanobot.md)\n- [Leon vs NanoClaw](https://www.anchorterminal.com/compare/leon-vs-nanoclaw.md)\n- [Leon vs Dots](https://www.anchorterminal.com/compare/leon-vs-openai-dots.md)\n- [Leon vs OpenClaw](https://www.anchorterminal.com/compare/leon-vs-openclaw.md)\n- [Leon vs PicoClaw](https://www.anchorterminal.com/compare/leon-vs-picoclaw.md)\n- [Leon vs Poke](https://www.anchorterminal.com/compare/leon-vs-poke.md)\n- [Leon vs QwenPaw](https://www.anchorterminal.com/compare/leon-vs-qwenpaw.md)\n- [Leon vs ZeroClaw](https://www.anchorterminal.com/compare/leon-vs-zeroclaw.md)\n- [Leon vs Zo Computer](https://www.anchorterminal.com/compare/leon-vs-zo-computer.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-12", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Gemini Spark vs Leon", "url": "" } ], "description": "Leon scores 41 (E) to Gemini Spark's 24.5 (F) for assistant proactive. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Gemini Spark F 24.5", "Leon E 41", "scores" ], "h1": "Gemini Spark vs Leon", "image": "https://www.anchorterminal.com/assets/og/compare-gemini-spark-vs-leon.png", "path": "/compare/gemini-spark-vs-leon", "published": "2026-10-01", "section": "tools", "title": "Gemini Spark vs Leon for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-12", "url": "https://www.anchorterminal.com/compare/gemini-spark-vs-leon" }, "tokens": { "markdown": 2600, "slim": 630 }, "version": 1 }