Claude or ChatGPT for writing books? A plain comparison of author tasks, pricing, privacy and a one-week test to choose on your own work.
ChatGPT, Claude, Gemini, Perplexity, Grammarly and ProWritingAid compared for authors by writing stage, with costs, KDP AI disclosure rules, copyright and privacy.
How Claude’s referral guest passes really work: who can share them, what readers get, why any reward is usage credit not cash, and how to disclose your link properly.