Best AI tools for fiction
5 tools in the Writing category, filtered to fiction.
Sudowrite
Writing · Multi-model (OpenAI / Anthropic via API)
8.2
Fiction-writing AI with story bibles, brainstorming, and pacing tools.
Paid· $19+/mo (Hobby/Student); $29/mo Professionalfictionnovels
AI Dungeon
Writing · Multi-model (rotating open-weights: Mixtral, Llama, Hermes variants)
AI-powered text adventure platform where the story is generated turn-by-turn by an LLM.
Freemium· Free tier; paid tiers roughly $10-$30/mo (Adventurer / Champion / Mythic)interactive-fictionai-roleplay
Character.AI
Writing · Proprietary Character.AI models
Conversational roleplay platform with millions of user-created AI personas.
Freemium· Free tier; c.ai+ around $9.99/moroleplaycreative-writing
NovelCrafter
Writing · Multi-model (BYO key: OpenAI, Anthropic, Gemini, Mistral, OpenRouter, Ollama)
Bring-your-own-key novel-writing workspace with a wiki-style codex and multi-model AI assistance.
Freemium· From $4/mo; 21-day free trial (no credit card); BYO AI API keysnovel-writingworldbuilding
ProWritingAid
Writing · Multi-model (proprietary + LLM-assisted features)
AI-powered writing coach and manuscript editor built for fiction authors and long-form writers.
Freemium· Free tier; Premium ~$30/mo or ~$120/yr; Premium Pro and lifetime licenses availablefiction-editingmanuscript-analysis