About Lex

Everything you need to know to get the most out of Lex

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Quick Start

Only have a few minutes? Want to quickly learn how to get the most out of Lex?

Click here to watch a short intro video.

Essays

High-level thoughts from our team about writing in the age of AI

• Why don’t more writers use AI? — Compared to programmers, writers hardly use AI. This essay unpacks why, and whether that might change without losing the soul of writing.

• Writing with AI - Our philosophy and practical examples for using in-line Ask Lex comments.

• The Lex Method - Our system for becoming a better writer.

Features

• AI

  • Ask Lex — Chat with any LLM with the context of your document attached

  • Checks — Get line-level suggestions highlighted in your document

  • Context Tags — Give your AI assistant persistent background knowledge to provide more relevant, personalized writing help

  • Prompts — A simple guide to accessing and using custom saved AI prompts with your documents

  • Prompt Library - Browse our collection of expert user contributed prompts for every kind of writing, from academic papers to YouTube scripts

  • Default Saved Prompts — A simple overview of saved prompts that come pre-populated in Ask Lex, and what you can do with them

  • Prompt Builder Guide — Learn how to create your own custom prompts and checks to solve specific writing challenges

• Version Control

  • Rewind - Scrub through and restore previous versions of your document

  • Versions - Create manual, named save points as you go

• Collaboration

  • Sharing a document

  • Sharing a prompt

  • Sharing a context tag

  • Sharing a folder

Want more? Read the unofficial Lex FAQ (Created by the Lex community, edited by Lex)

Content

• A living list of video, audio, and written content from Lex, formal creator partnerships, and organic shout outs

Pricing & Plans

• Pricing FAQ - Answers to common questions about Lex Pro

• Lex Teams - Our collaborative features and team pricing for organizations

• AI Limits for Free Users - Ask Lex message, Checks, and custom prompt limits on free accounts.

• Discounts - we offer discounted pricing for nonprofit organizations, students, and academics. If this sounds like you, please email us at [email protected]!

Integrations

• Lex + Kit Integration - How to connect Lex with Kit (formerly ConvertKit) to improve your newsletter writing process

Developer API

• We have a simple API! Click here to read the documentation.

Recent Lex Newsletters

• Click here for a list of ~relatively~ recent Lex newsletters!

Affiliate

• Want to get paid to promote Lex? Click here to learn more about our affiliate program.

Security & Legal

• Terms of Service

• Privacy Policy

• Security & Privacy Practices

Can’t find what you're looking for? Email us at [email protected]