It is neither, it's an ISI (indeterminate-short-internode) hybrid which is a different category than either determinate or indeterminate or dwarf.

ISI types are indeterminants that have be bred to grow like a bush-sized determinate. So most treat them like a determinate.

Dave

Thank you for that awesome information.

The instructions on the seeds packets and web sites that sell this variety say that this doesn't need staking. I'm not staking mine. Do you think that information is true?

Yes I find they benefit from at least minimal staking as the weight of the fruit as it develops can break branches.

Dave