Core Scientific, a Bitcoin miner turned data center operator, has announced plans to offer $3.3 billion worth of speculative-grade debt to fund its pivot into AI infrastructure. The company, which is valued at around $6.55 billion, plans to use a portion of proceeds from the raise to refinance debt. It did not specify how the notes due in 2031 would pay in terms of an interest, nor when they would be offered to investors. The move comes as the AI boom increases demand for high-density data centers across the U.S. The firm is currently building six data center facilities under a 12-year agreement with cloud-computing firm CoreWeave.