ChatGPT can modify various formats, and I tried to have it consistently modify a .STL file multiple times in the same manner. I.e.: "This STL has a roman numeral V on it - please replace it with a IV". Unfortunately, consistency was not achievable and the results were unsatisfactory. See the pic. The LLM also fails at geometry changes with specific constraints ("keep this part perfectly round"). I should probably have spent the time learning a little Blender.