Google’s Biggest AI Hackathon Ever is Live.

Google held I/O 2026 on 19–20 May and announced 100 things. AI Mode going global. Gemini Omni. Google Antigravity. A new Gemini 3.5 Flash. One hundred things in two days, across keynotes, blog posts, side sessions, and social threads.

Buried in all of that was a $2 million competition open to developers anywhere in the world. This is the largest hackathon prize pool in history. Yet, most people missed it, and that is exactly why we are here.

Even the people who did see the announcement probably scrolled past it. A $2 million global competition sounds like something for big teams in San Francisco, not for a developer in Lagos with a working idea and eleven weeks of evenings to spare. That reflex is understandable but it is also wrong. This piece deals with both the noise and the doubt.

Build With Gemini XPRIZE

Google and XPRIZE — an institution that runs moonshot competitions funded by billionaires — have jointly launched the Build with Gemini XPRIZE, a global hackathon with a $2 million prize pool spread across 25 winners.

That is the largest prize pool ever offered for a hackathon. Full stop.

Registration is open right now and the build window runs from 19 May to 17 August 2026, which means you have roughly eleven weeks left from today. Finalists will pitch live in Los Angeles on 25 September.

You can enter at xprize.devpost.com.

What They Are Actually Asking You to Build

Most hackathons ask you to build the next developer tool, the next productivity app, or the next API wrapper. The Build with Gemini XPRIZE asks you to solve something else entirely.

The five prize categories are:

• Money & Financial Access — building tools that expand access to financial services for underserved people

• Education & Human Potential — improving learning outcomes and access to quality education

• Small Business Services — supporting small and medium businesses to grow and operate more efficiently

• Entrepreneurship & Job Creation — tools that help people start businesses or create employment

• Professional Services — making legal, medical, accounting, and advisory services more accessible

This is not a list of abstract Silicon Valley problems. These are Lagos, Nairobi, Accra, Kigali problems. Financial exclusion. Education gaps. Small businesses running on spreadsheets and WhatsApp. The cost of professional services that most people simply cannot afford.

The XPRIZE CEO said something worth quoting directly when this launched:

The phrase ‘lived experience’ is doing serious work here. The person who grew up without a bank account has a different understanding of what financial access means than someone who has always had one. That lived knowledge is not a limitation. In a competition judged on real-world impact, it is an edge.

How the Money Works

$ 2 million dollars pool prize does not mean $ 2 million for the winner. It means there is $2 million for twenty-five winners in total. Here is the breakdown:

Each project is eligible for a maximum of one prize. You cannot win both a ranked prize and a category prize.

The Most Important Thing to Understand About Judging

This is not a hackathon where you submit a slick demo and a deck full of projections and hope for the best.

Judging is based on three equally weighted criteria: business viability, AI-native operations, and category impact.

The rules are explicit: teams must launch a real business, acquire real users, and generate real revenue within the 90-day build window. Projections do not count. A working prototype without users does not count. They want something that is already operating in the world, no matter how small or early, not a vision of what something could become.

For developers who have been sitting on an idea that solves a real problem they see every day, this is an opportunity that rewards starting.

What You Build With

The full Google AI stack is available to all participants:

• Gemini (the AI model, with a free API tier to start)

• Google AI Studio (for prototyping and testing — free)

• Google Antigravity (the new agent-building platform)

• Cloud Run, Stitch, and Google Flow

Participating does not require you being an advanced developer. The available tools are designed to let you move from idea to working product faster than has ever been possible. As long as you can describe the problem clearly and you understand your users, the AI can carry a significant portion of the technical build.

Who Can Enter

Individuals or small organisations with fewer than 25 employees. You must be the age of majority in your country. Teams are allowed — in fact, combining people with different skills (a developer, someone who understands the problem deeply, someone who can talk to users) is likely to produce stronger entries than solo efforts.

KINI BIG DEAL — Why This Matters

The pipeline between "I have this idea" and "I submitted an entry" is full of friction, self-doubt, and the quiet assumption that these things are not really meant for us. That gap — not a shortage of ideas or skill — is why African developers are underrepresented in global AI competitions.

The Build with Gemini XPRIZE has removed several of those friction points. The tools are free. The categories match the problems we know best. The prize structure rewards actually shipping something, which is a format that favours people who are close to real users rather than people who are good at making demos look polished.

None of that guarantees a win, but it does guarantee that the competition is worth entering.

7,600 developers have already registered. You have until 17 August and the registration is free.

Register here → xprize.devpost.com. Build something great today and until next time, stay curious.