101AITools
    Submit a tool
    Back to directory
    Lex logo
    3D
    Freemium
    Free Trial
    Sponsored

    Lex

    3D

    Lex is a modern AI-native word processor for long-form writing—essays, articles, reports, and books. It combines a distraction-free editor with real-time collaboration, AI feedback, brainstorming, and rewriting powered by frontier models including GPT-4o, Claude, and Llama. Designed for writers who want AI inside the document, not in a separate chat window.

    Related guides

    Browse curated shortlists where this tool appears.

    AI tools for

    All use cases · All industries

    Alternatives & similar tools

    Related picks from editorial notes.

    Also mentioned

    • Notion AI
    • Sudowrite
    • Google Docs with Gemini

    Features & details

    Full overview from our catalog (read-only reference).

    Category (short)
    3D
    Category
    3D
    Pricing (CSV)
    Free Trial
    Directory pricing
    Freemium
    Sponsored note
    no
    Target audience
    Long-form writers (journalists, Academics and researchers drafting papers, Content teams wanting collaborative AI editing
    Best for
    Long-form writers (journalists, essayists, authors), Academics and researchers drafting papers, Content teams wanting collaborative AI editing, Writers frustrated with ChatGPT copy-paste workflows
    Pricing notes
    Verified July 2026 via lex.page and official Lex Upgrades doc. Free: $0, 30 Ask Lex messages/day, 5 saved prompt runs/month, access to GPT-3.5/Mistral/Llama 3, full editor and collaboration. Pro: $18/mo monthly or $12/mo billed annually ($145/yr). Unlimited AI on Pro with premium models. Lex Team add-on: $5/user/mo annual or $8/user/mo monthly for shared workspace. No word credits on Pro—flat unlimited usage.

    Pros & cons

    Editorial notes to help compare fit before opening the vendor site.

    Pros

    • Flat-rate unlimited AI on Pro—no token counting
    • Premium models (GPT-4o, Claude) at ~$12/mo annual
    • Excellent collaborative editing experience
    • Purpose-built for long-form, not short copy
    • Clean, distraction-free writing environment

    Cons

    • Pricing page lacks transparent public grid
    • Free tier AI limits hit quickly (30 messages/day)
    • Not suited for bulk marketing content generation
    • Team pricing requires separate add-on
    • Smaller ecosystem than Notion or Google Docs

    Review notes

    Context from the listing review and editorial research.

    Lex's flat-rate unlimited Pro at $12–18/mo is exceptional value vs per-credit tools like Jasper. The editor itself is polished—users compare it favorably to Google Docs with better AI integration. Free tier limits (30 messages/day) exhaust quickly for active writers. Pricing page uses Stripe embed rather than clear public grid, which hurts transparency. Strong niche product, not a content factory.

    Extended features

    In-depth description and capability notes.

    Distraction-free editor with real-time collaboration via share links Ask Lex AI feedback, brainstorming, and rewrite commands Premium AI models on Pro: GPT-4o, Claude 3.5 Sonnet, Llama 405B Live collaboration without app downloads Publishing via read-only share links Lex Team add-on for shared folders and templates ($5–8/user/mo) iOS app on Pro plan

    Use cases

    Lex fits professional writers, journalists, academics, and content teams who draft long-form work and want AI assistance embedded in the writing environment. Essay and article drafting with inline AI feedback Collaborative editing with co-authors and editors Rewriting and tone adjustment without leaving the doc Brainstorming and outline generation for long pieces Publishing drafts via shareable read-only links Brand-voice training via Kit integration on Pro