General AI assistantsuses AI
ChatGPT
OpenAI's general AI assistant with projects, memory, file uploads, image creation and custom GPTs on paid plans.
Best for
Brainstorming, outlining, critique and a custom GPT loaded with your style sheet.
Pricing
Free, Go, Plus and Pro plans (dollar amounts not shown on the page at check) (checked 2026-10-18 on the official site; prices change)
Pros
- Free tier
- Projects keep book files together
- Image creation for mood boards
Cons
- Free tier input is limited (~12 pages per message per OpenAI)
- Will confidently invent continuity details
Visit the official ChatGPT site →
Used in these workflows
- Run an AI continuity check before beta readers
- From premise to scene outline with an AI brainstorm partner
- Get useful critique from an AI (without losing your voice)
- Worldbuilding with AI: generate, then curate
- Blurbs, ad copy and launch materials with AI
- Using AI responsibly as a fiction author
- A 30-minute daily writing routine with AI support