Lex
Lex is an AI-powered Writing Assistant tool — AI writing editor built for long-form thinking and drafting. Best for: Content Writing & Proofreading. Pricing: Freemium (GateOnAI Score: 59/100).
AI writing editor built for long-form thinking and drafting.
Lex is an AI‑powered word processor that lets writers create, edit, and collaborate on documents. It offers real‑time AI feedback, brainstorming, rewrites, title suggestions, and shortcuts for finding the best words, all within a minimalist interface that supports keyboard navigation. Users can share editable or read‑only links without needing to download an app, and teams can collaborate instantly with one‑click login. Upgrading to Lex Pro provides access to larger models such as GPT‑4.1, Claude 4 Opus & Sonnet, early feature access, an iOS app, and priority email support. The service stores data privately on its own database and does not use user writing to train its models.
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Works Well With
Tools that Lex genuinely connects with, based on real input/output compatibility data (not just shared category):
- Dall-E 3 - OpenAI's tool for creating images from text.
- Runway Gen - AI video generation with Gen-3 Alpha model
- Canva Teams - AI design collaboration platform for teams
- Leonardo - Professional-grade AI image generation and editing.
- Synthesia - Create AI avatars and video from text.
- HeyGen - AI video generator with realistic avatars and voice.