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📖 The AI Tool Bible

Best AI tools for fiction

14 tools in the Writing category, filtered to fiction.

All Writing →
SU

Sudowrite

Writing · Multi-model (OpenAI / Anthropic via API)
8.2

Fiction-writing AI with story bibles, brainstorming, and pacing tools.

Paid· Hobby & Student: $10 · Professional: $22 · Max: $44fictionnovels
NO

NovelCrafter

Writing · Multi-model (BYO key: OpenAI, Anthropic, Gemini, Mistral, OpenRouter, Ollama)
8.0

Bring-your-own-key novel-writing workspace with a wiki-style codex and multi-model AI assistance.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesnovel-writingworldbuilding
PR

ProWritingAid

Writing · Multi-model (proprietary + LLM-assisted features)
8.0

AI-powered writing coach and manuscript editor built for fiction authors and long-form writers.

Freemium· Free: Free · Premium: €3000 · Premium Pro: €3600 · Lifetime Premium: €39900 · Lifetime Premium Pro: €69900fiction-editingmanuscript-analysis
RE

Reflect

Writing · OpenAI GPT-4 + Whisper
8.0

Networked note-taking app with GPT-4 and Whisper baked into the writing surface.

Paid· Free: Free · Pro: $20 · Business: $35note-takingvoice transcription
AD

AI Dungeon

Writing · Multi-model (rotating open-weights: Mixtral, Llama, Hermes variants)
6.9

AI-powered text adventure platform where the story is generated turn-by-turn by an LLM.

Freemium· Basic: $10 · Pro: $20 · Enterprise: $50interactive-fictionai-roleplay
FL

FlowGPT

Writing · Multi-model
6.9

Community marketplace for AI character roleplay scenarios and prompt templates.

Freemium· Free browsing; in-app wallet/credits for premium chatsprompt-discoverycharacter-roleplay
HH

Hello History

Writing · Multi-model (Humy.ai platform)
6.9

AI chatbot app for life-like conversations with historical figures like Einstein, Cleopatra, and Buddha.

Freemium· Free messages on signup (~20-30); paid subscription for unlimited usehistorical-roleplayedutainment
SH

ShyEditor

Writing · Multi-model (GPT-4, Grok)
6.9

AI-native writing environment that bolts an assistant, citation manager, and knowledge base onto a distraction-free markdown editor.

Freemium· Free Basic (20 AI credits/mo, 100MB); Pro $10/mo (500 credits, 5GB)long-form-writingacademic-writing
CA

Character.AI

Writing · Proprietary Character.AI models
6.8

Conversational roleplay platform with millions of user-created AI personas.

Freemium· Free tier; c.ai+ around $9.99/moroleplaycreative-writing
LE

Lex

Writing · Multi-model (GPT-4.1, Claude)
6.8

Google Docs-style writing app with an LLM sidekick wired into every sentence.

Freemium· Free tier; Lex Pro paid (price not public); Teams add-onlong-form draftingeditorial feedback
AW

AI Wedding Toast

Writing
6.6

Free AI speech generator for best men, maids of honor, and parents who froze at the blank page.

Free· Free, no credit cardwedding-speechbest-man-toast
AP

AI Poem Generator

Writing
6.5

Free single-purpose web app that turns a one-line prompt into a rhyming poem.

Free· Free, no signuprhyming-poemsgreeting-cards
NM

Nyamuru Manga Name Studio

Writing · Model-agnostic (BYO LLM — prompts designed for ChatGPT, Claude, Gemini, or local models)

Open-source PWA for drafting manga storyboards (ネーム) with LLM-ready prompts and a structured OMNY data format.

Free· Free and open source (MIT License). No paid tiers; users bring their own LLM if they want to use the included AI prompts.Drafting manga storyboards (ネーム) from a prose scriptConverting light-novel scenes into structured panel layouts via an LLM
SI

SillyTavern

Writing · Backend-agnostic — OpenAI, Anthropic Claude, Google Gemini, Mistral, OpenRouter, KoboldAI/KoboldCpp, Text-Generation-WebUI, Tabby, llama.cpp, NovelAI, AI Horde, any OpenAI-compatible endpoint

Locally installed power-user frontend for chatting with LLMs, image models, and TTS backends

Free· Free and open source (AGPL-3.0). Users pay only for whichever backend they connect (OpenAI, Claude, local models via KoboldCpp/Ooba/Tabby, AI Horde, etc.).Character-driven AI roleplayLong-form collaborative fiction