Anthropic offers Blackstone over‑10% yield on $9 billion junior debt in $60 billion AI chip financing

Anthropic is proposing a junior debt tranche of $9 billion to Blackstone, anchored by a coupon of more than 10% and total returns above that level. The tranche is part of a $60 billion financing package called Project North Star, which also includes $42 billion of senior debt guaranteed by Broadcom. Blackstone’s investment would represent half of the $18 billion junior portion, with the debt backed by Anthropic’s five‑year lease payments on Google’s custom tensor processing units.

The deal gives Blackstone exposure to a high‑yield AI infrastructure loan, potentially delivering returns above 10% for its investors. Broadcom’s guarantee on the senior tranche reduces credit risk for the overall package, which may influence pricing of other AI‑related debt.

  • 1Anthropic is offering Blackstone a coupon of more than 10% on a $9 billion junior debt slice.
  • 2The junior tranche represents half of the $18 billion junior debt portion of the financing.
  • 3Total returns on the junior debt are expected to exceed the 10% coupon after accounting for issuance discounts and fees.
  • 4The financing package totals $60 billion, with $42 billion of senior debt guaranteed by Broadcom.
  • 5Anthropic’s debt is backed by five‑year lease payments on Google’s custom tensor processing units.
  • 6Anthropic’s prospectus shows a $125.2 billion, five‑year commitment to lease Google’s TPUs.

Sources