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Head to head · Assistant proactive · October 2026 research run

Gemini Spark vs Instinct

Gemini Spark scores 24.5 (F) on agent readiness against Instinct's 11.4 (F), and leads in 6 of 7 scored categories. 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 InstinctSpear Street Technology, Inc. · Platform F11.4/100#984 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

  • Reliability, 14 against 5
  • Schema & documentation, 17 against 3
  • Security & auth, 60 against 25
  • Payments & pricing, 10 against 0
  • Maintenance & community, 17 against 3

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

Instinct F

Best for A consumer assistant for one adult who wants errands done by text or phone call, such as bill disputes, gifts, groceries, appointments and travel, and who accepts that it acts and spends as their agent.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

No price is published. The terms say fees may apply to certain functions, are charged in US dollars and are non-refundable

Score by category

CategoryWeight this runGemini SparkInstinctEdge
Reliability16%20145Gemini Spark +9
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2173Gemini Spark +14
Agent ergonomics13%16.295Gemini Spark +4
Security & auth14%17.56025Gemini Spark +35
Payments & pricing10%12.5100Gemini Spark +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8173Gemini Spark +14
Transparency & trust7%8.84951Instinct +2
Negative events≤1500
TotalF 24.5/100F 11.4/100

Facts side by side

FactGemini SparkInstinct
KindPlatformPlatform
VendorGoogle LLCSpear Street Technology, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuthOAuth or key
PricingPaidPaid
x402nono
LicenceProprietary hosted service under the Google Terms of ServiceProprietary service under Instinct's Terms of Service, which grant personal use only
Read-only variant documentednono
llms.txtnono
Last release2026-05-19none
Terms last updated2026-07-302026-08-26
Privacy policy last updated2026-09-242026-08-26
Customer content may train modelsyes, with an opt-outyes, with an opt-out
Terms restrict automated accessyesyes
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textyes

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.

Instinct

The terms and privacy policy are specific about connected accounts, model training and the risks of autonomous actions, and security.txt is valid. No price, documentation, status page, changelog or programmatic interface is published, and customer content trains AI models unless the owner opts out.

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

Instinct

  1. Do not plan on calling Instinct from a program. No API, MCP server or key was found, and the terms forbid automation software and benchmarking
  2. A person signs in at app.instinct.com with a phone number and a one-time code by text, and may wait for a place when the service is at capacity
  3. Tell the owner to opt out of model training at app.instinct.com/settings before connecting mail or files, since training is on by default
  4. Disconnecting an account does not delete what was indexed from it. Delete that data at app.instinct.com/workspace
  5. Treat purchases and bookings as final. The terms say actions may not be reversible and that confirmation controls are not guaranteed

Questions

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

Gemini Spark scores 24.5 (F) on agent readiness against Instinct's 11.4 (F), and leads in 6 of 7 scored categories.

Other comparisons with Gemini Spark or Instinct

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