Compare AI tools

	Perplexity S	Sudowrite S	Suno S	Lex A
Tagline	AI search done right. Cited answers, not chat theater.	AI writing tool built specifically for fiction writers.	Prompt to full song with vocals, instruments, the works.	Google Docs with an AI collaborator baked in.
Category	Research	Writing	Audio	Writing
Pricing	Free + $20/mo Pro	$19-$59/mo	Free + $10/mo + $30/mo	Free + $12/mo
Best for	Replacing Google for any question where you want a cited answer in seconds.	Novelists, screenwriters, fiction short-form writers.	Jingles, intros, demos, sketches, personal use.	Essays, long-form drafts, thinking on the page.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots	Real songs with real lyrics v4 is very good Quick turnaround	Clean writing UX — distraction-free +++ prompt triggers AI help Collaboration + AI feedback together
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Pricey for casual use Fiction-only focus — not for business writing	Copyright gray zone Audio quality behind studio	Less feature-rich than Google Docs AI ceiling below dedicated tools
Kai's verdict	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.	S-tier in its category. The first AI music tool I'd actually listen to.	A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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