Anthropic is anticipated to receive a “high” junk rating from credit rating agencies following its upcoming initial public offering (IPO), suggesting a rating in the BB range that signals speculative-grade debt. Previous expectations from its anchor investor had leaned toward an investment-grade rating before 2027, but those have shifted.
The revised prediction comes from Blackstone, which committed to a $63 billion financing deal for Anthropic’s chip infrastructure. In discussions with investors tied to that transaction, Blackstone now expects the AI company to land in the speculative-grade BB tier post-IPO. That outlook runs counter to earlier forecasts that had placed Anthropic’s rating above junk—implying it would be viewed as lower-risk debt.
While this rating is still a forecast and not a formal credit rating decision, the implications are meaningful. A “high junk” assessment would make it more expensive for Anthropic to borrow money, impacting future financing costs as it ramps up spending. The company has been pouring resources into acquiring compute capacity over the past year, making funding terms and rates especially consequential.
Earlier this week, Anthropic officially filed for its IPO, sparking widespread speculation about how its public debut will reshape the AI sector. The company’s financial structure, capital needs, and credit profile have all become focal points for investors and rating firms alike.
This developing rating forecast comes at a moment when Anthropic’s business model—centered on expensive model training and accelerating infrastructure investments—is under increased scrutiny. Investors are watching not just for revenue potential but for how efficiently the company can manage debt amid heavy capital outlays.
What this means: A high junk rating could force Anthropic to pay higher interest rates on debt financing and limit access to favorable capital markets. It may also affect investor sentiment heading into and following the IPO, imposing stricter pressure on its cash flow projections and capital discipline.
Despite these headwinds, an elevated rating range doesn’t preclude success. If leveraged carefully, Anthropic’s IPO can still generate capital to support its growth—though the margin for error will be thinner. What to watch next: how Anthropic’s debt covenants are structured, whether it aims to improve margins to offset investor risk, and which rating agencies ultimately weigh in—and with what ratings.
