Compare AI tools

	Lex A	Sudowrite S	NotebookLM S	Gamma A
Tagline	Google Docs with an AI collaborator baked in.	AI writing tool built specifically for fiction writers.	Google's research notebook. Turns your docs into a podcast.	AI slide decks that don't look AI-generated.
Category	Writing	Writing	Research	Productivity
Pricing	Free + $12/mo	$19-$59/mo	Free	Free + $10-$20/mo
Best for	Essays, long-form drafts, thinking on the page.	Novelists, screenwriters, fiction short-form writers.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Pitch decks, proposals, internal presentations — fast.
Strengths	Clean writing UX — distraction-free +++ prompt triggers AI help Collaboration + AI feedback together	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Strong templates Decks, docs, webpages Doesn't look generic
Weaknesses	Less feature-rich than Google Docs AI ceiling below dedicated tools	Pricey for casual use Fiction-only focus — not for business writing	Google-only Can be slow on large corpora	Locked into Gamma's format Export quality varies
Kai's verdict	A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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