SpaceX's $6.3B Colossus deal turns its supercluster into a compute utility
Open-source lab Reflection AI will pay SpaceX $150 million a month, starting July 1, for Nvidia's latest GB300 chips at the Colossus 2 data center near Memphis — a contract worth up to $6.3 billion if it runs through 2029, with either side able to exit on 90 days' notice after the first three months. It's the latest sign SpaceX is turning Colossus into a commercial compute platform, following arrangements with Anthropic, Google, and Cursor. Reflection AI, founded in 2024 by two former Google DeepMind researchers, is backed by Nvidia.
Why it matters: The scarce resource in AI right now isn't talent or data — it's compute, and whoever controls the largest GPU clusters can meter capacity out like electricity. SpaceX renting Colossus to outside labs, on top of owning Cursor and xAI, makes it a vertically integrated infrastructure force almost overnight: it trains its own models, owns a data pipeline, and sells the spare compute to competitors. The Reflection deal structure is quietly telling — $150 million a month with a 90-day exit reads less like a partnership and more like a utility contract, which is exactly the framing that should worry anyone whose AI roadmap depends on renting someone else's cluster. For the ecosystem, this deepens a dependency that's rarely priced into strategy: a lab building on rented frontier chips is one contract renegotiation away from a capacity cliff. My read is that merchant compute at this scale hands the cluster owner real pricing and prioritization power over the labs it serves — including, awkwardly, its own competitors — and that concentration is the structural story worth tracking more than any single deal's dollar figure.