Lex Pricing (2026): What Every Plan Costs and Who It's For

Lex Pro costs $18/mo. The Pro plan includes unlimited AI writes, AI autocomplete suggestions, AI-powered comments and feedback, and full access to all writing features. There is a free plan with limited AI generation for users who want to try the product before committing.

The Lex free plan gives you access to the document editor with basic AI writing assistance, but limits the number of AI-generated completions and writes per month. It is useful for evaluating the interface and core writing experience, but heavy users will quickly hit the generation limits. The free plan is best suited to occasional writers testing the product.

Lex is purpose-built for long-form writing — essays, articles, reports, and drafts that benefit from thoughtful AI collaboration. It is not optimized for short marketing copy, ad headlines, or product descriptions. Writers looking for marketing-focused AI tools would be better served by Jasper, Copy.ai, or Rytr, which are built specifically for marketing content formats.

Lex Pro at $18/mo is a standalone AI writing tool, while Notion AI is an add-on at $10/mo per member (billed annually) layered on top of an existing Notion subscription. If you already use Notion for notes and documents, Notion AI is typically more economical. Lex offers a more writing-focused, distraction-free environment compared to Notion's broader workspace.

As of 2026, Lex primarily offers monthly billing at $18/mo for Pro. Check the pricing page at lex.page for the latest annual billing options, as pricing can change. Annual billing discounts, if available, would reduce the effective monthly cost — worth confirming before paying month-to-month if you plan to use the tool long-term.

Lex supports document sharing and collaborative features, making it suitable for writers working with editors or co-authors. The AI autocomplete and suggestion features work within a shared document context. However, Lex does not have the same team workspace depth as Notion or Google Docs — it is primarily a single-writer-focused tool with collaborative access layered in.

Lex uses large language models to power its writing assistance, autocomplete, and feedback features. The tool is designed around an editorial AI metaphor — the AI acts as a writing collaborator rather than a content generator. For users prioritizing the most recent GPT-4 or Claude-based outputs, it is worth testing Lex's output quality against your preferred model before committing to Pro.

Lex Pro is worth $18/mo if long-form writing is your primary workflow and you value a distraction-free environment with deeply integrated AI assistance. For writers who produce essays, reports, or articles regularly and prefer working in a clean document editor rather than a feature-heavy platform, the Pro plan provides meaningful productivity value. For marketing copy or short-form content, more specialized tools offer better ROI.