Have you tried ChatGPT with reasoning? Like the o5 model. Prompt stating "Convert this text into Grade 8 reading level" would be enough.

Yes, there is, and this is actually one of the areas where AI already works quite well. General-purpose tools like ChatGPT or similar AI writing assistants can simplify texts, rewrite them in plain language, or adapt them for different audiences. The key is how you prompt them (e.g. “rewrite this for a non-expert audience” or “use plain English”). They’re not perfect, so human review is still important, but for first drafts or clarity checks they’re very useful.