Anthropic, a prominent artificial intelligence laboratory, is preparing for what could be one of the largest initial public offerings (IPOs) in history. According to its prospectus, the company intends to spend over $800 billion on computing infrastructure between now and 2045. To fund such ambitious goals, Anthropic relies heavily on its ability to secure investment-grade credit ratings, which allow a company to borrow capital at lower interest rates from a broader pool of institutional lenders, including many insurance and pension funds that are legally restricted from holding debt in junk-rated entities.
However, Blackstone—a private capital firm acting as an anchor investor in Anthropic’s latest $63 billion chip financing deal (known as "Project North Star")—has recently signaled a shift in expectations. While Blackstone previously suggested to its investment partners that Anthropic might achieve an investment-grade rating by the end of the year, it now indicates that a rating in the "double B" range or higher is more likely. This shift suggests that major credit rating agencies may view the startup's financial profile as too speculative for a top-tier rating immediately following its public debut.
This potential lack of an investment-grade rating creates a significant hurdle for Anthropic’s long-term financing strategy. Because many large-scale investors are barred from lending to junk-rated borrowers, Anthropic may be forced to rely more heavily on suppliers with high credit ratings to guarantee its debt. For example, in the current North Star deal, more than $42 billion of senior loans are guaranteed by Broadcom, a company with an investment-grade rating. While the junior debt—where Blackstone’s funds have invested $9 billion at yields exceeding 10%—is backed by Anthropic’s own lease payments, the company's ability to independently raise massive amounts of capital without such third-party guarantees may be limited if it remains in the junk category.

The image relates to the specific financial structure of the North Star deal involving Blackstone's investment in junior debt.