For those wondering, CP3 would have to give up a LOT of money for OKC to buy him out. He's owed:
2019-20 - $38.5M
2020-21 - $41.4M
2021-22 - $44.2M
Total - $124M
Fully guaranteed. And that number is too big to stretch as you can't have more than 15% of the cap in stretched money.

— Keith Smith (@KeithSmithNBA) July 12, 2019