I work with documents all day. Drafts, research dumps, client briefs, and messy meeting notes that someone insists count as a deliverable. At some point, I got tired of a**uming which AI tool actually handles that kind of work well, so I tested it properly by pasting real, ugly, long-form content into Claude, Gemini, ChatGPT, and Perplexity’s free tiers and seeing what came back.