NotebookLM
Google's source-grounded notebook for research, reports, audio overviews, and study aids.
Research & Search
Freemium4.4
§ Recipe
Write a book with AI.
The book doesn't write itself, and if it does, it reads like it. AI is your research assistant, sparring partner, and editor — you are still the author. This stack keeps that boundary.
IndieFree
Research corpus
01Upload every paper, transcript, and interview that informs your book. Ask it questions across all sources at once. It's a personal librarian that cites its answers — indispensable for non-fiction.
Writing partner
02Claude
Anthropic's long-context assistant for writing, coding, analysis, and careful reasoning.
Chatbots & AssistantsFreemium4.8Claude's long-context handling means you can paste entire chapters and get feedback that understands structure, not just sentences. The best sparring partner for prose.
Line-level editor
03Wordtune
AI writing companion for rewriting, tone adjustment, and clarity improvements.
Writing & ContentFreemium4.0Not for generation — for rewriting. Wordtune suggests alternative phrasings that preserve meaning, which is what you want in the final edit pass.
Copy edit pass
04Grammarly
AI writing assistant for grammar, clarity, rewriting, tone, and business communication.
Writing & ContentFreemium4.5Last stop before anyone reads. Grammarly catches the last 5% — tone inconsistency, passive voice, the semicolon you used wrong — that tired-you won't see.
Fact-checking
05Before you publish a claim, verify it with sources. Perplexity's citations let you cross-reference in seconds. Cheaper than a lawsuit.