It's 24 hours of inactivity, as far as I know. If you have a file posted in multiple places or for a popular model there may be enough activity to keep it live for a long time. Also, if the uploader has a premium account the files won't expire.
That said, this particular thread isn't very active and most uploaders don't pay for hosts to upload their leaks, so gofile links aren't a good filehost to use here.
(it also used to be less aggressive a year or two ago when gofile was newer. Files used to last a few weeks after inactivity and it was easier to keep them alive longer. Now if you don't get them almost immediately it's just a dead link here.)