Lex

For any writer who drafts more than a few thousand words a week, yes — $18/month for unlimited access to GPT-5 and Claude 4.1 Opus is remarkable value. ChatGPT Plus costs $20/month with usage caps, and most AI writing tools charge per-word credits that get expensive fast. Lex's flat-rate model means you never stop to count tokens mid-sentence. The editor alone is worth the price for serious writers — the AI features are a bonus.

Google Docs Gemini integration is good for general users but feels bolted on — AI lives in a sidebar and doesn't know your writing style deeply. Lex is built from the ground up around the writing process: keyboard-first navigation, distraction-free mode, inline AI continuations, writer-editor workflow, and access to both GPT-5 and Claude 4.1 (not just Google's Gemini). For professional writers who care about craft and flow, Lex is a dramatically better writing environment. For general office documents, stay on Google Docs.

Yes. The free plan includes GPT-3.5, Mistral, and Llama 3, plus the full Lex editor, real-time collaboration, and document storage. For light writing or to test whether the workflow fits, the free tier is genuinely functional. The main upgrade reason is access to GPT-5 and Claude 4.1 Opus on Pro — premium models produce noticeably better suggestions, rewrites, and feedback. Free works for drafting; Pro is where AI becomes genuinely useful.

Marketing teams producing high-volume SEO content, ad copy, email sequences, and social posts will be frustrated by Lex — it has few templates, no SEO grader, and no conversion-focused features. Those users should pick Jasper, Copy.ai, or Writesonic. Lex is explicitly designed for craft writing, not content marketing. If you're writing essays, books, long-form journalism, or editorial content, it's the right tool.

Yes. Lex handles documents of any length, with fast performance even on 50,000+ word manuscripts. Many novelists and non-fiction authors use Lex for book drafts because the editor stays responsive, AI features work contextually across the whole document, and you can organize chapters as separate files or sections. Real-time collaboration lets you share chapters with editors or writing partners without leaving the app.

Lex supports Google Docs-style real-time collaboration with visible cursors, live editing, inline comments on text selections, and shared access controls. The collaboration experience feels native and is smoother than most AI writing tools, which often bolt on collaboration as an afterthought. For writer-editor workflows at magazines and publications, Lex is one of the few AI tools that doesn't force the editor to switch to Google Docs to leave feedback.

You do — completely. Lex is a writing tool, not a content mill. Your documents, drafts, and AI-assisted content are 100% yours to publish, sell, or modify. Lex does not train AI models on your content. Documents are stored securely in your account and can be exported at any time in Markdown, HTML, or plain text. This is important for professional writers concerned about rights and IP ownership.