Lex

Overview

Lex is a word processor with AI editing built in rather than bolted on: instead of copying text into a separate chat, writers ask for feedback, brainstorm, rewrite passages and run word-choice commands directly inside the document, and the tool can suggest titles as a draft takes shape. It keeps a deliberately clean, distraction-free editor and adds the collaboration parts of a modern document tool: real-time editing on shared links, a comment system with keyboard navigation, and version control for exploring alternative phrasings without losing the original. Sharing and collaboration are free; the paid Lex Pro tier unlocks the largest AI models along with early access to new features.

Best for writers who want a clean editor with AI feedback built in.

Lex sits at the writers' end of the AI writing market, closer to a thoughtful editor than to a marketing content engine: there are no SEO scores or campaign agents, just a quiet editor that gives feedback and rewrites where you are working. The free plan covers real-time collaboration and comments, which makes it easy to try with a team, while Lex Pro is about access to stronger models and new features. It suits people who write essays, drafts and long documents and want AI as an editor, not people who need to produce optimized marketing copy at volume.

Key Facts

Features

Content types

Documents, from quick notes to long drafts

Brand voice

Yes, Style Guides learn your voice from writing samples you supply, with larger guides on the paid plan

Content scoring

No score and no readability rating. Lex answers with written feedback on a draft, and the published feature list carries nothing that returns a number

Drafting tools

Yes, AI feedback on drafts, rewriting, brainstorming, word-choice commands and title suggestions

Templates

Shared templates and prompts, on the Lex Teams add-on

Team workflows

Yes, real-time collaboration, a comment system and version control

API

Yes, a documented REST API

Integrations

Integrations coming soon.

Deployment and Support

Deployment

• Cloud (SaaS)
• Browser-based

Support

• Email helpdesk
• Community forum

Onboarding

• Documentation and knowledge base

Company size

• Freelancers
• Small and mid-sized

Suitability

The table combines the industries the vendor addresses with the company sizes the tool is aimed at. An empty cell means the combination is not stated, not that it is ruled out.

Pros and Cons

Pricing

• Free

  Free

  Includes real-time sharing and collaboration, on smaller AI models.

• Lex Pro

  Not stated

  Access to the largest AI models, larger Style Guides, early access to new features, the iOS app and priority support.

• Lex Teams

  Not stated

  An add-on alongside Pro: unlimited documents in shared folders, plus shared templates and prompts.

Best For

• Media & Creative
• Technology

Alternatives and Comparisons

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