Build with Gemini XPRIZE: two million dollars for startups built in 90 days

Announced at I/O 2026, the largest prize pool ever offered in a hackathon: $2 million, a 90-day build window and a strict rule. Real users and real revenue, not slides of projections.

A hackathon that demands real products

Google and XPRIZE launched at I/O 2026 the Build with Gemini XPRIZE, a global hackathon with a $2 million prize pool — the largest ever offered for a competition of this kind. The build window runs from May 19 to August 17, 2026: a strict 90 days.

The rule that changes the game is in the participation conditions. A demo or a slide deck with market projections isn't enough. To reach the final, teams must launch a real business, acquire real users and generate real revenue within the window. The jury will weigh three equally weighted criteria: business viability, AI-native operations and category impact.

Five categories, five problems

The categories defined by XPRIZE are: Education and Human Potential, Entrepreneurship and Job Creation, Small Business Services, Money and Financial Access, and Professional Services. The selection is handled by Hacker Fund, which does screening and verification before delivering five finalists to an expert panel for the live competition on September 25, 2026 in Los Angeles.

How the prize is structured

The winner takes $500,000. Second place gets $200,000. Third through fifth, $100,000 each. On top, fifteen runner-up prizes of $50,000 and five category prizes — one per vertical — also of $50,000. The structure rewards breadth of participation, not just first place.

A mandatory stack: all Google

The competition is powered by Google's full AI stack: Gemini, Google AI Studio, Antigravity, Cloud Run, Stitch and Flow. Put differently: Google is using the prize pool to push its platform as an end-to-end development environment for AI-native startups. The implicit message to developers is that you can move from idea to production while staying entirely within the Google estate.

Why it matters

This is not the usual promotional hackathon. Requiring real revenue in 90 days filters serious teams from those just chasing visibility, and creates a product-proof mechanism stricter than any demo day. For anyone already in motion with a Gemini-based MVP, the framework is an accelerator with public disclosure: winning means proving the business model holds up in front of an expert jury.

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