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It’s tough to find much new material for Google I/O this year since I have a policy of only writing about things I can personally test. A lot of the big announcements are still in preview.
I prefer covering items that are already available, as I’ve encountered instances where previews didn’t match what was eventually released publicly.
The most intriguing announcement is Google’s upcoming competitor to Gemini, Gemini Spark, described as a “personal AI agent” that can “natively connect with your favorite Google apps like Gmail, Calendar, Drive, Docs, Sheets, Slides, YouTube, and Maps.”
The FAQ for Gemini Spark includes an interesting detail about its underlying technology:
What model does Gemini Spark run on?
Gemini Spark runs on Gemini 3.5 Flash and Antigravity.
I delved into finding more information about how Gemini Spark handles the risk of prompt injection, but found that the best guidance was in an enterprise-focused announcement from Google Cloud. This post explains:
Spark operates in a fully managed, secure runtime on Google Cloud. Every task runs in a fresh, isolated environment to ensure data never overlaps between sessions. To protect your enterprise, all traffic routes through our secure Agent Gateway that enforces Data Loss Prevention (DLP) policies, while user credentials remain encrypted and never exposed directly.
Given how sensitive data will be handled by Gemini Spark in the near future, I hope they’ve made this fully secure. This could represent a significant security challenge if not properly addressed.
Another noteworthy change is that Google has announced the transition of the open-source Gemini CLI to Antigravity. The open-source Gemini CLI, available under an Apache 2.0 license and written in TypeScript, will stop working with their AI subscription plans on June 18th, replaced by the new closed-source Antigravity CLI.
Key Takeaways
- Gemini Spark is a new AI agent for Google apps, running on Gemini 3.5 Flash and Antigravity.
- The transition of the open-source Gemini CLI to Antigravity will occur in June 18th.
- Google Cloud’s enterprise-focused post provides insights into how Spark ensures security against prompt injection risks.
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