Epoch AI has published a comprehensive update on OpenAI's Stargate infrastructure project, detailing the status of multiple US-based AI compute sites. The report provides the most detailed look yet at how OpenAI is building out the physical infrastructure needed to train and serve its next generation of models.
Stargate is OpenAI's codename for its massive AI infrastructure buildout. The project involves constructing and equipping multiple data centers across the United States, each designed to house tens of thousands of GPUs and provide the power, cooling, and networking required for frontier AI training runs.
The scale is unprecedented. Traditional data centers might house a few thousand servers; Stargate sites are being designed to support AI clusters that are orders of magnitude larger. This is infrastructure built for a fundamentally different kind of computing workload.
According to Epoch AI's report, several Stargate sites are at various stages of development:
The report also notes that OpenAI is working with multiple cloud providers and colocation partners rather than building everything from scratch. This hybrid approach allows for faster deployment but introduces complexity in managing distributed infrastructure.
OpenAI is not alone in building out AI infrastructure. Google, Microsoft, Amazon, and Meta are all investing billions in data center capacity specifically designed for AI workloads. The competition for GPU supply, power capacity, and skilled engineers is intensifying.
This infrastructure race has several implications:
The Stargate buildout signals that OpenAI is betting big on continued scaling of model capabilities. The infrastructure being built today is designed to support models that are significantly larger and more capable than what exists now.
For the broader AI ecosystem, this means that the infrastructure layer is becoming a strategic asset. Companies that control the physical infrastructure for AI training and inference will have significant influence over how AI develops and who can access it.
OpenAI's Stargate project is one of the largest private infrastructure investments in tech history. The scale of the buildout reflects OpenAI's confidence that AI capabilities will continue to scale with compute. For builders, the message is clear: AI infrastructure is not a commodity—it's a strategic advantage.