Madoff was in FCC Butner, which is a medium/low-security prison. I don't expect SBF to serve in a prison with a different level of security.

SBF is probably going to take a plea deal with one of the conditions being that he be placed in a reasonably nice prison.

However, if he continues his current delusional legal 'strategy' of going on a neverending "I'm totally guilty" interview tour, he may end up bunking with Ted Kaczynski.