(Starcloud,Inc., El Segundo, California) A space data center company founded in 2024 as Lumen Orbit by Philip Johnston from McKinsey, Ezra Feilden from Airbus Defense and Adi Oltean from SpaceX.
First Model Training in Orbit
In November 2025, the 132-pound Starcloud-1 test satellite roughly the size of a refrigerator trained a NanoGPT small language model with the complete works of Shakespeare using one H100 GPU. This was said to be the first time an AI model was trained in orbit.
Starcloud-2
In 2027, the second Starcloud project will put two satellites into space with multiple GPUs to test inference processing.
Starcloud-3 and 1L (1-Lunar)
In 2028, Starcloud-3 is a single large satellite that weighs three tons and will be a test run for an orbital data center. In 2028 or 2029, Starcloud 1L will use Firefly Aerospace's Elytra lunar orbiter to run AI in lunar orbit for five years to demonstrate the viability of a large lunar-orbit AI data center. See
space data centers.