Gemini Spark Becomes Google's Always-On Personal Agent
What Happened
Gemini Spark is powered by Gemini 3.5 and operates even when user devices are offline, executing tasks across email, calendar, and documents. The agent rolls out to testers this week and to US-based Google AI Ultra subscribers next week. It's positioned as a step toward true persistent agent workflows.
My Take
Persistent agents change the asset base of knowledge work. If your assistant runs while you sleep, the marginal value of a 9-to-5 employee falls and the value of asynchronous coordination skills rises. The catch: nobody has solved trust and authorization for always-on agents — one rogue email sent overnight will be the story that defines 2026. Companies should be writing agent governance policies now, not after the first incident.
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