"""Article 5
Exceptions and limitations
1. Temporary acts of reproduction referred to in Article 2, which are transient or incidental [and] an integral and essential part of a technological process and whose sole purpose is to enable:
(a) a transmission in a network between third parties by an intermediary, or
(b) a lawful use of a work or other subject-matter to be made, and which have no independent economic significance, shall be exempted from the reproduction right provided for in Article 2. """
As upload to a GAN is not transmission, and the economic significance is pretty clear.
Then the German 44a is an exact copy of the EC directive, so this also applies I think.
As the word "train" refers to applying the uniquely human capability of acquiring information, the word "upload" seems the most appropriate term fallback to use when referring to putting information into some AI system.
You're welcome!
Reference: open any dictionary and look up the word "train". Choo choo!
However, I get the impression you're feeling somewhat frustrated right this moment. Not a problem. Would you like to come back later and edit your post? If you do (and/or reply to this), I'll reply in more detail and provide sources where possible.
[1] https://lawreview.law.ucdavis.edu/issues/53/5/notes/files/53... with thanks to https://news.ycombinator.com/item?id=35713309
[2] https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX...
[3] https://www.gesetze-im-internet.de/englisch_urhg/englisch_ur...