The best AI is Actual Intelligence.
LLMs are amazing. Chat not so much. You can't easily reuse, reorder, or refine the work you put into a chat — let alone share it. And vendor-specific "memory" serves only to lock up your expertise and make it theirs.
Factor.In lets you use AI differently. A personal library of notes and plans, prompts and recipes: portable plain-text files that encode your intelligence. Future-proof by design, compatible with any AI, and profoundly yours.
Just read, write, and run.

Documents are the love language of LLMs. And people, too.
Endless chats and shape-shifting apps are a distraction. Study your field. Understand what AI workflows actually work for it. Borrow from the best.
Your library is your (or your team's) accrued AI-native expertise. If the spirit moves you, share what you know.
Factor.In is free for building in public.


Your library grows and travels with you.
Factor.In is designed to help human experts hone their craft. Your thoughts, ideas, and instructions direct AI, not the other way around. Turn notes into full-fledged research documents, design specs, agent skills — with or without AI assistance.
Factor.In gives you the structure. Every change is tracked and reversible. Access your library from anywhere, even an Obsidian vault. Export it all in one click.
Take your body of work to any AI, any tool, any time.

Your library captures your thinking — and executes it.
Write a task and run it against a spreadsheet, a codebase, a manuscript. Factor.In executes your instructions with your library as context every time.
AI runs in a secure sandbox. At arm's length from your machine. Using the provider and model of your choice. Bring your own keys or use ours. Results come back done.
Keep what you like, reject what you don't.
Non-human work executed by animal-named workers
This is human work. AI keeps changing. We don't have to.
Ready to feel human again?