Compare AI tools

	Lex A	Sudowrite S	Claude S	Grammarly A
Tagline	Google Docs with an AI collaborator baked in.	AI writing tool built specifically for fiction writers.	Anthropic's flagship — best reasoning + longest useful context.	Grammar check + tone + AI drafting, everywhere you type.
Category	writing	writing	chat	writing
Pricing	Free + $12/mo	$19-$59/mo	Free + $20/mo Pro + team/enterprise	Free + $12-$15/mo Premium + team plans
Best for	Essays, long-form drafts, thinking on the page.	Novelists, screenwriters, fiction short-form writers.	Long writing, code, careful thinking, documents over 50 pages.	Non-native English writers, business email, anyone who types a lot.
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	Best-in-class writing + nuanced reasoning 1M context on Opus Artifacts for code/docs Lowest hallucination rate in my testing	Works in every browser/app Now has generative AI (GrammarlyGO) Tone detection + suggestions
Weaknesses	Less feature-rich than Google Docs AI ceiling below dedicated tools	Pricey for casual use Fiction-only focus — not for business writing	Image generation is weak No native web search on all tiers	Can feel naggy Premium features gate basics Privacy concerns (reads your writing)
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 reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.	A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.
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