IMHO, for this site (and similarly for AO3), what most people are against is the AI slop.  (Feed a prompt to Chat GPT, get a “novel” from it.  TBH, quite sophisticated and impressed it’s gotten as well as it has; basically a million typewriter monkeys that have some pattern recognition grasp at what the humans are seeking.)
 
	I don’t think folks would be against you using something like grammarly, or similar spell/grammar checker with some AI backing to it.  I don’t think they’d be really against you using an AI created image as a writing prompt/aid to help visualize the scene you’re about to write/describe. I don’t think that’s at a level of needing disclosure.  But then we get closer to the gray line with something like an AI character profile, backstory, or it helping you finish/write a scene.
 
	Right now, if AI is forming a substantial chunk of the writing process, disclosure is likely the best policy, and let the reader decide if they want to continue or not.  (Just remember, you’re still on the hook for whatever you post.)