Have a text box to add some text at the bottom of AI generated content. For me it would be "Generated by $model on $date". Ideally those would fill in

For Length of AI, a slider is not a good interface. Replace with Radio buttons giving easy access to different lengths. See screen shot
https://forums.thebrain.com/post/feedback-word-count-on-ai-9841-9930-9931-12744381

Add a checkbox to optionally have AI add a Wikipedia link and maybe some other common ones. I often type this in and its helpful to get this link automatically.