Google I/O is next week, May 19-20

So Google I/O is next week, May 19-20, and the thing nobody's quite saying out loud is that this isn't a model-release I/O. Gemini 3.1 Ultra already shipped back in April. That means the whole show is about dev tools, not a new model on stage. If you only watch one thing, watch the Developer Keynote on the 19th at 1:30 PT. The main keynote will mostly be consumer demos.

The real story is Antigravity. It's their agent-first IDE, and the interesting part isn't the editor, it's the Manager view. You spawn five agents at once, one builds the API, one writes tests, one does the frontend, all in parallel. And instead of you reviewing tool calls (which is miserable), the agents produce Artifacts: screenshots, plans, browser recordings. You leave comments on those like you would on a Google Doc. That's the actual unlock. Reviewing AI work like you'd review a junior dev's PR.

Two things to watch for. Pricing: heavy users are getting throttled and people are pissed in the forums. And, whether they keep Claude and the open-source OpenAI model working well inside Antigravity, or quietly degrade them. That tells you if it's a platform or a moat.

The other one I care about is the AI Studio to Antigravity handoff. The pitch is: prototype in AI Studio, one click, multi-agent build-out in Antigravity, deploy to Cloud Run. If they actually demo that end-to-end without cutting away, Google has the first real story like that. If the demo skips the handoff, you know.

Sleeper announcement: Chrome's Prompt API going stable. Means Gemini Nano runs in the browser, no backend, no token bill. Form validation, autocomplete, summarization, those don't need a server call anymore. Changes the flow for a lot of consumer web stuff.

Skip the Gemini 4 rumors. They just shipped 3.1 Ultra. Not happening.

The actual question is whether Google can turn a model lead into a platform lead before the window closes. Last year you could feel the duct tape between every product. If this year the seams disappear, they won the conference. If not, Cursor and Claude Code are still very much in the fight.