Nscale and Anthropic in Talks for Second $45B AI Compute Deal at Monarch Campus

British GPU cloud infrastructure provider Nscale is in advanced negotiations with Anthropic to execute a second landmark artificial intelligence compute agreement valued at approximately US$45 billion. The negotiations arrive at a pivotal juncture as Nscale prepares for its high-profile New York Stock Exchange initial public offering under ticker NSCL.

According to reporting from Bloomberg and confirmed by Reuters sources, the prospective transaction encompasses Building 2 at Nscale's Monarch mega-campus in West Virginia. The infrastructure facility is engineered to deliver 460 megawatts (MW) of continuous power capacity anchored by NVIDIA's next-generation Vera Rubin NVL72 compute clusters.

Compounding Commitments: Building 2 Lease and Right of First Refusal

The transaction builds upon an existing landmark agreement signed in August, wherein Anthropic contracted Building 1 at the Monarch campus for an aggregate value cited in Nscale's IPO filings of up to US$44.6 billion. Beyond Building 2, Anthropic also holds a right of first refusal covering potential expansion into Building 3 across the multi-hundred-acre campus.

Historically, the Monarch site had been allocated to Microsoft under a letter of intent in March 2026. Following Microsoft's strategic exit from the location, Anthropic moved decisively to absorb available grid capacity, securing long-term physical runway for its frontier model research pipeline.

Countering IPO Valuation Haircuts vs. Extreme Counterparty Exposure

For Nscale and its lead underwriters (Goldman Sachs and JPMorgan), the US$45 billion contract represents an essential strategic counterweight. Prospective public market investors had recently pressured Nscale to slash its targeted IPO valuation from US$30–35 billion down to US$16–19 billion following Microsoft's exit from its Essex site and delays in Norway.

Securing a binding second agreement with Anthropic would validate Nscale's headline paper backlog and bolster its defense of a US$30 billion public valuation. Conversely, it compounds Nscale's customer concentration risk to unprecedented extremes, binding forward corporate solvency almost entirely to Anthropic's long-term commercial trajectory.

Execution Realities: Energizing 460 MW of Industrial Substation Infrastructure

The critical test for institutional investors remains the gap between commercial contract execution and physical high-voltage energization. Deploying 460 MW demands long-lead high-voltage substation interconnections, liquid cooling distribution units, and timely delivery of Vera Rubin silicon.

“A second US$45 billion agreement reflects Anthropic's extraordinary appetite for frontier training capacity ahead of its own public market debut. For Nscale, it offers decisive commercial validation, yet elevates physical substation execution to an all-or-nothing proposition.”

Both Nscale and Anthropic declined to comment officially on the discussions. Institutional allocators will monitor forthcoming amended S-1 registration statements to verify whether terms transition into a final binding contract.