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Cerebral Valley · Google · 2025-12-13

Gemini 3 Hackathon London

Public gallery: every submissionEvent page ↗

Projects
46
Winners
6
With repo
98%

Winners

3rd Place

Vibe Building

Vibe Building is an app that helps kids bring their ideas to life through vibe coding, a natural, creative way of building where curiosity comes first and code follows naturally.

education

Ogulcan Gurelli, Freddie Nicholson, Angus Bloch +1

Finalist

RauserHack

Live at http://beatbrain.ai/ BeatBrain.AI allows you to express your music ideas with only your voice, while learning about digital music creation!

creative/musicvoice
Finalist

AstroLab

A virtual env for astrophysicists to find, test, and hypothesis research based on data via visualisations, initial reports, and simulations

agentsscience

All other submissions

40

GemVibe

A model-aware prompt optimizer for vibe coding workflows, combining DSPy and GEPA to turn rough prompts into reliable, model-specific outputs.

dev tools

JUJIE YANG, Jieyu Yang, Shashi Jagtap

Fix-It Flow

Fix-It Flow is a "Living User Manual." It addresses "Multi-Modelity" by creating a tight feedback loop between Gemini 3 Pro (Reasoning) and Nano Banana Pro (Rendering).

repair/tradesvision

Stephen Canning, Lea Rattei

GemSynap

A community-driven voice platform which acts as the city's nervous system (hence the name GemSynap) where residents propose, discuss, and vote on local transformation ideas, which are then evaluated using AI against urba

productivitylegal

Homey

This project, "homey," is an AI-powered property marketplace designed for ultimate personalization.

visionagents

Abdurrahman Ismath, Uzair Khan, Mohammed Fahmy

ZC

A Visualisation Application which takes either a historical location and time period, or fictional location.

culture/heritagevision

|Royal

An AI esports Gaming Coach that reviews gameplay and coaches user on what they did well and what they could do better based on data and reasoning as well as providing analytics on their gameplay.

educationagents

Christopher White, Alex Girnus, Suli Irfan +1

Three Point Five

This is a website made for Maths students in high school university, it helps them understand what questions they've done correctly and what the correct solutions are and the step-by-step process to get to the solution.

education

Ashfi Dewan, Amir Gulubayli

ATLAS

ATLAS is an open-source, long-running, multimodal video production system that automatically turns complex ideas, research, and data into fully produced explainer videos.

educationcreative/music

Checkpoint

We've all been there: lying in bed at night, eyes closed, but unable to sleep because our brains are replaying past mistakes—moments where we failed to fight back against verbal attacks, wishing for a chance to go back a

healthcreative/music

R7D

The Autonomous News Conglomerate (ANC) Producer is an end-to-end, multi-modal media pipeline that addresses the "authenticity crisis" in AI-driven journalism.

agentsproductivity

HDD

We made a learning platform to be able to create the shortest route possible to a successful learning outcome.

education

dzak dzulzalani, Danylo Piatyhorets, Hugo de Boissard

ALCHEMY

ALCHEMY - AI-Powered Campaign Generator What It Is A web application that lets marketers and entrepreneurs instantly generate professional advertising content for their products using AI.

productivity

Umair Ismati, Ameen Izhac

KataLab

KataLab is a human-in-the-loop GenAI Agent system built with Google AI tools to solve costly and slow company onboarding challenges.

educationagents

Oliver Wood, Deborah Pelacani Cruz

TEMI

TEMI is an AI system that automatically finds trending topics, creates and posts videos about them, and then improves its content based on how people react.

agentscreative/music