UAE-headquartered G42's AI cloud company, Core42, has expanded its AI cluster in the US.

Located at the Lake Mariner site in Buffalo, New York, Core42 has increased the compute capacity at the site by 42MW, bringing it to 60MW.

The Lake Mariner data center is operated by TeraWulf, which signed a capacity agreement with Core42 in January 2025. At the time, it was said to be for more than 70MW of capacity at the site, which is targeting 750MW at full build-out.

Under that original agreement, Core42 retains a time-limited option for an additional 135MW capacity delivered in early 2026.

Core42 has deployed a combination of AMD Instinct MI300 GPUs at the site and Nvidia infrastructure.

“We are scaling our US infrastructure in line with long-term deployment programs,” said Talal M. Al Kaissi, CEO of Core42. “Increasing our US capacity at Lake Mariner strengthens our ability to serve hyperscale, AI-native, and large enterprise workloads, and further extends the build-out of our AI infrastructure globally.”

Elsewhere in the US, Core42 has deployments in Dallas, Texas, Sunnyvale and Stockton, California, and Minneapolis, Minnesota, including the Condor Galaxy supercomputers, developed in collaboration with Cerebras.

The company's AI cloud platform currently has ten global sites operational, and additional deployments are planned for 2026. In March 2026, Core42 secured $550m in funding for its US and European AI build-out.

The Lake Mariner campus was previously used by TeraWulf for its Bitcoin mining operations, but has since pivoted to focus more on AI and HPC customers. The company topped out the CB-4 building at the site in March 2026.

Six buildings are currently planned, with three – Wulf Den (2MW), CB1 (16MW), and the first phase of CB2 (42MW) – live. The second phase of CB2, as well as CB3 (42MW), CB4, and CB5 (168MW), are expected to be energized this year.

The company has also signed multiple deals with AI cloud firm Fluidstack that are backed by Google. Fluidstack plans to lease 360MW of critical IT load from TeraWulf's Lake Mariner campus, in two 10-year deals backed by Google. Google also took a 14 percent stake in TeraWulf across those two deals.