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Head to head · Assistant proactive · October 2026 research run

AstrBot vs Gemini Spark

AstrBot scores 58.8 (C) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security & auth and transparency & trust. Both do assistant proactive.

Best AI personal assistants that act for one person · All 190 assistants comparisons

AstrBotAstrBotDevs · Agent harness C58.8/100#584 of 986 Gemini SparkGoogle LLC · Platform F24.5/100#974 of 986

Which one, for what

AstrBot C

Best for Someone who wants one self-run bot answering on QQ, Telegram, Slack, Discord, Lark or WeCom, in private or group chats, with scheduled tasks, a knowledge base and plugins.

Ahead on

  • Reliability, 81 against 14
  • Schema & documentation, 62 against 17
  • Agent ergonomics, 54 against 9
  • Payments & pricing, 60 against 10
  • Maintenance & community, 81 against 17

Also in its favour

  • Free to start without a card
  • Open source

Watch for

No approval step before any tool call. The agent sends messages, creates scheduled tasks and calls MCP tools without asking

Gemini Spark F

Best for A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.

Ahead on

  • Security & auth, 60 against 44
  • Transparency & trust, 49 against 40

Watch 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

Score by category

CategoryWeight this runAstrBotGemini SparkEdge
Reliability16%208114AstrBot +67
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26217AstrBot +45
Agent ergonomics13%16.2549AstrBot +45
Security & auth14%17.54460Gemini Spark +16
Payments & pricing10%12.56010AstrBot +50
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88117AstrBot +64
Transparency & trust7%8.84049Gemini Spark +9
Negative events≤15-20
TotalC 58.8/100F 24.5/100

Facts side by side

FactAstrBotGemini Spark
KindAgent harnessPlatform
VendorAstrBotDevsGoogle LLC
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth
PricingFreePaid
x402nono
LicenceAGPL-3.0-or-laterProprietary hosted service under the Google Terms of Service
Read-only variant documentednono
llms.txtnono
Last release2026-09-272026-05-19
Terms last updated2026-01-122026-07-30
Privacy policy last updatedno document linked2026-09-24
Customer content may train modelsnot found in the textyes, with an opt-out
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularity42k starsnone

Verdicts

AstrBot

Fourteen official messaging adapters, scheduled tasks and scoped API keys come in one AGPL-3.0 program with releases most weeks. No tool call asks for approval, no mail, calendar or long-term memory connector is built in, and usage statistics, including the machine's hostname, are sent by default.

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.

Before you call either

AstrBot

  1. Set ASTRBOT_DISABLE_METRICS=1 before the first start. Statistics, including the hostname, are sent to tickstats.soulter.top by default
  2. Set dashboard.host to 127.0.0.1 in data/cmd_config.json, or the DASHBOARD_HOST variable, unless remote access is intended. The default is 0.0.0.0
  3. Create an abk_ key in Settings, OpenAPI with only the scopes needed, and send it as Authorization: Bearer or X-API-Key
  4. Include username in every POST /api/v1/chat body. Without the chat:admin scope an administrator ID is rejected
  5. Check Extensions, Future Tasks after asking for a schedule. One-off tasks are deleted after their run even when the run fails

Gemini Spark

  1. 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
  2. Expect a confirmation request before sends, edits, purchases and web form submissions, and note that bulk changes to private Google Tasks run without one
  3. 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
  4. 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
  5. Treat every safety statement here as Google's own description. None was tested, and no message was sent to the service

Questions

Which is better for AI agents, AstrBot or Gemini Spark?

AstrBot scores 58.8 (C) on agent readiness against Gemini Spark's 24.5 (F), and leads in 5 of 7 scored categories. Gemini Spark leads on security & auth and transparency & trust.

Are AstrBot and Gemini Spark open source?

AstrBot is open source (AGPL-3.0-or-later). No open-source release is listed for Gemini Spark.

Other comparisons with AstrBot or Gemini Spark

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