The OSI’s definition actually tackles this pretty well:

Sufficient information as to the source of the data so that one could potentially go out and to retrieve it, and recreate the model, is sufficient to fall within the OSAI definition.

To note is that this definition was discussed for awhile with many engineers in the AI field, including from Meta.

There is no such thing as a lifetime license.

Any license only lasts as long as the person doesn’t want to alter the deal.

(Speaking as a sublime text user who got shafted and switched to emacs)