We are developing the world's first neural digital twin of the environment. A Large Reality Model, a convergence of a Large Language Model and a neural network modelling a high-resolution digital twin of the environment. Our planet is facing unprecedented challenges, from climate change to urbanization. A high-resolution Large Reality Model can provide a sandbox for testing potential solutions to these issues in a virtual environment before implementing them in the real world. Creating a Large Reality Model requires vast amounts of accurate and up-to-date data. Gathering and processing this data is a colossal task. Satellites are insufficient in terms of resolution, and traditional drones are not scalable enough. We have developed a platform to collect the real world high-resolution data for the neural network in order to solve this challenge. We have a platform that operates like a satellite constellation under the clouds using an fleet of lighter-than-air autonomous drones. They have multi-day autonomy, zero emissions, and no noise. McKinsey Global Institute's estimate that AI could potentially deliver an additional economic output of about $13 trillion by 2030, which would add about 1.2% to global GDP growth annually. Given the potential to significantly enhance productivity and efficiency across multiple global industries, the market size for a detailed Large Reality Model at 1 cm/pixel resolution could potentially be valued in the hundreds of billions to trillions of dollars. Kelluu is a first mover into this market.