Where is texture/prompt to material feature?

I recall  text to material  Ai generation by prompt.   It worked slightly better than  just image to material  Ai which is still pretty useless.    But I can’t find it now.    Have it been retired or something?  Or became separately paid ?

Not that I used it much before.  Too small 1x1m textures , too repetitive, not especially good in general  but   would like to give it another try just to see if any progress been made.