Nice. I'm sure you've looked into various backends to use (in addition to AFL). Just wanted to give a shoutout to radamsa[0]. My [somewhat not-up-to-date] experience has been that it produced sometimes findings that AFL didn't (because of e.g. different approach relative to infinite input space).

[0] https://gitlab.com/akihe/radamsa

In regard to CPUs - my laptop reports 4 CPUs, my workstation 16 - where the value for someone involved in fuzzizng would come in my mind would be if you could take away the hassle of scaling fuzzing 'transparently' to 100 or 1000 CPUs. What I am suggesting here is that on your pricing page you might be off by factor of 100 in regard to what number of CPUs actually make offering compelling to someone who would consider outsourcing their fuzzing infrastructure.