Shared from twixb · simonwillison.net

Google I/O, Gemini Spark, Antigravity

simonwillison.net·May 20, 2026

The author expresses difficulty in discussing Google I/O due to many announcements being previews rather than available products, particularly highlighting the upcoming Gemini Spark as a personal AI agent that integrates with Google apps. Concerns are raised about its security, especially regarding data handling and prompt injection, as well as the transition from the open-source Gemini CLI to the closed-source Antigravity CLI.

The most actionable insight for you is the upcoming release of Google's Gemini Spark, which is positioned as a personal AI agent integrating deeply with Google apps. It's notable for operating in a secure, isolated runtime on Google Cloud, addressing concerns about data security and prompt injection. Keep an eye on its deployment if you're considering integrating AI agents into your workflow or developing prompt engineering strategies, as its secure infrastructure could set new standards in the field.

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