AIToday
Large Language ModelsSimon Willison's WeblogPublished: May 21, 2026, 01:01 JST

Google announces Gemini Spark, a personal AI agent connecting to Gmail, Calendar, Drive, and other Google apps, running on Gemini 3.5 Flash and Antigravity; open source Gemini CLI tool stops working with AI subscription plans on June 18th.

3 Key Points

  1. Google unveiled Gemini Spark as "your personal AI agent" that can "connect natively with your favorite Google apps like Gmail, Calendar, Drive, Docs, Sheets, Slides, YouTube, and Google Maps". Gemini Spark runs on Gemini 3.5 Flash and Antigravity (a desktop app, CLI agent tool, SDK, and IDE available at antigravity.google).

  2. Gemini Spark operates in a fully managed, secure runtime on Google Cloud. Each task executes in a fresh, strictly isolated, ephemeral VM, all traffic routes through a secure Agent Gateway that enforces Data Loss Prevention (DLP) policies, and user credentials remain fully encrypted and are never exposed directly to the agent.

  3. The open source Gemini CLI tool (Apache 2.0 licensed TypeScript) will stop working with Google's AI subscription plans on June 18th and will be replaced by the new closed source Antigravity CLI.

Not sure about something? Ask the AI

Questions and answers are published on this page.

Summaries like this, in your inbox every morning.

Simon Willison's WeblogRead Original Article

AI news that matters for your work, delivered every morning.

Pick your industry and the AI tools you use, and get news related to your work every day.

Free · 30 seconds with Google · unsubscribe anytimeWhat is AIToday? →

Ask AI

Ask AI anything about this article. The AI reads this article, earlier AIToday articles, and Wikipedia, and cites its sources. Q&As are published on this page for other readers too.

Questions and answers are published on this page.

Related Articles

Next articleAmprius and Matternet expand partnership to integrate silicon anode batteries into drone delivery aircraft