Credit rating agency Kroll Bond Rating Agency (KBRA) assigned AI unicorn Anthropic a BB+ issuer rating in June, the highest speculative grade (junk) rating, just one notch below investment grade, according to documents obtained by the Financial Times. The rating was issued before Anthropic completed a $35 billion chip financing deal led by Apollo and had not been previously disclosed. This rating directly impacts Anthropic's financing prospects, as major Wall Street banks are preparing a new $60 billion debt package to help the company acquire more custom AI chips.