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Head to head · Assistant proactive · October 2026 research run

Gemini Spark vs Zo Computer

Zo Computer scores 43.1 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 6 of 7 scored categories. Gemini Spark leads on security & auth. Both do assistant proactive.

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

Gemini SparkGoogle LLC · Platform F24.5/100#974 of 986 Zo ComputerZo Computer Company · HTTP API E43.1/100#911 of 986

Which one, for what

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 37

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

Zo Computer E

Best for One person who wants a hosted assistant with its own Linux machine, reachable by text message and chat apps, and who accepts that the assistant acts on connected accounts without a documented approval step.

Ahead on

  • Schema & documentation, 73 against 17
  • Agent ergonomics, 34 against 9
  • Payments & pricing, 40 against 10
  • Maintenance & community, 68 against 17
  • Transparency & trust, 60 against 49

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

The access token for the API and MCP endpoint grants full access to the workspace, with no scoped or read-only token documented

Score by category

CategoryWeight this runGemini SparkZo ComputerEdge
Reliability16%201415Zo Computer +1
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21773Zo Computer +56
Agent ergonomics13%16.2934Zo Computer +25
Security & auth14%17.56037Gemini Spark +23
Payments & pricing10%12.51040Zo Computer +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.81768Zo Computer +51
Transparency & trust7%8.84960Zo Computer +11
Negative events≤1500
TotalF 24.5/100E 43.1/100

Facts side by side

FactGemini SparkZo Computer
KindPlatformHTTP API
VendorGoogle LLCZo Computer Company
Hosted endpointno (local only)https://api.zo.computer/mcp
TransportsHTTP
AuthOAuthAPI key
PricingPaidFreemium
x402nono
LicenceProprietary hosted service under the Google Terms of ServiceProprietary service under Zo Computer Company's terms of service
Read-only variant documentednono
llms.txtnoyes
Last release2026-05-192026-09-14
Terms last updated2026-07-302025-08-08
Privacy policy last updated2026-09-242026-05-20
Customer content may train modelsyes, with an opt-outnot found in the text
Terms restrict automated accessyesnot found in the text
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

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.

Zo Computer

Zo publishes an OpenAPI file, Markdown docs, plan prices and a named list of the providers that receive user content. One access token grants full access to the workspace, no approval step before sending or buying was found in the reviewed docs, and no status page, rate limit or SLA is published.

Before you call either

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

Zo Computer

  1. Send POST https://api.zo.computer/zo/ask with Authorization: Bearer zo_sk_... and an input string. The owner creates the token under Settings > Advanced
  2. Pass persona_id for a persona with a narrow tool set. The token itself carries every permission the owner has
  3. Set memory_mode to off to keep workspace memory out of a request. The field is in the OpenAPI file and absent from the API guide
  4. Do not retry /zo/ask blindly after a timeout. No idempotency key is documented and the request may already have sent a message
  5. Append .md to any guide or reference URL for Markdown

Questions

Which is better for AI agents, Gemini Spark or Zo Computer?

Zo Computer scores 43.1 (E) on agent readiness against Gemini Spark's 24.5 (F), and leads in 6 of 7 scored categories. Gemini Spark leads on security & auth.

Can an agent call Gemini Spark and Zo Computer without installing anything?

No hosted endpoint is listed for Gemini Spark. Zo Computer has a hosted endpoint at https://api.zo.computer/mcp.

Other comparisons with Gemini Spark or Zo Computer

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