The art contest are for testing your creativity and if you are using some image generation apps for it then you don't have a chance to win or deserve to win at all because you are not even working hard for it and just submitting image generated by that app but contest are for original art only.But what I was saying above was there are some members who make 3D art themselves but not on big level.
To win in art contests, you must have good art as well as proof of works. You can not beat so many talented artists if you use automated apps, AI-based art tools. They don't provide you enough high quality arts and you can not show your proof of work too.
Arts made by tools won't match the conditions of art contest too. Furthermore, you can not plagiarise, steal arts of others and submit it in contest then become one of winners.
Art contest participants will inform the manager about that too. Cheaters are not tolerated in art contests by company, manager and participants.
AI art could technically win, if it is not allowed to do that then I do not know what will happen, if thats the reason why people can't win with AI works and not allowed that would be understandable. But if we are talking about just "quality of work" then there are better and better AI software out there who are making art, and that means eventually there could be one that could take the award, and in that case its a possibility.
I am not saying that its going to happen today, but it could happen in the future when AI gets better. However, like I said if its not allowed to use AI then in that case it wouldn't be possible no matter how good the quality of it is.
Could technically win because it will generate beautiful art piece without giving to much effort on it. Ai will just help you to give what picture you ask on the internet so this will give less effort for the people who use it and that is not good for the roobet contest held. Although its quietly cool to see what's in the mind of people but I don't think this should be consider to accept on contest where there are manually effort inserted.