Lex Review, Pricing, Features & 56 Alternatives 2026

Q: What is the benefit of upgrading to Lex Pro?

You get access to the biggest and best AI models like GPT-4.1 and Claude 4 Opus & Sonnet. These produce noticeably better writing quality. You also get early access to new features and priority email support.

Q: Is my writing used to train the AI?

No. Lex uses models from OpenAI, Anthropic, and TogetherAI through enterprise APIs. These have stronger privacy protections than consumer accounts. Lex pays for that additional privacy on your behalf.

Overview

レックス is a collaborative document editor that combines real-time writing with AI editing tools. It lets you write, get AI feedback, rewrite sections, and generate title ideas without leaving the document. Over 300,000 marketers and writers use it as a Google Docs replacement with better AI integration.

判決： A solid choice for writers who want AI help without switching between tools, though the free tier's AI models are noticeably weaker than the premium ones.

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請求月額

月間訪問数 63,272as of Jun 25, 2026

上位国

代替案 56利用可能

Lex is a document editor that puts AI tools right where you write. It looks and feels like Google Docs, but with a sidebar where you can ask the AI to review your draft, rewrite a paragraph, or suggest titles. Over 300,000 people use it, including marketers at companies like SparkToro.

The tool is designed for anyone who writes and edits seriously — marketing copy, academic papers, fiction, emails. The free tier gives you basic AI models. Upgrading to the paid plan unlocks GPT-4.1 and Claude 4 Opus, which produce noticeably better results. You also get early access to new features and priority support.

What sets Lex apart is how seamlessly the AI is integrated. You don't copy-paste between ChatGPT and your doc. It's all in one place. The collaboration is smooth, and version history lets you experiment freely. The main drawbacks are the limited mobile experience (no native app yet) and the missing track changes feature, which is listed as coming soon. For teams that want a focused writing environment with AI built in, Lex is a strong option.

Key Features

AI Feedback

Ask the AI to review your draft, brainstorm ideas, or rewrite any section.

Live Collaboration

Share a link and see others typing in real time with no app download needed.

Version History

Try different versions of your text without losing the original draft.

Title Ideas

Generate a list of good title suggestions with one click.

Publishing

Share a read-only link so readers can view your finished document.

Keyboard Commands

Use handy AI shortcuts to find the best word or generate ideas quickly.

Pricing Freemium

無料

$0

Basic AI models
Standard collaboration
制限付き機能

最も人気

Lex Pro

Paid monthly

Access to GPT-4.1 and Claude 4 Opus & Sonnet
新機能への早期アクセス
優先メールサポート
Better AI writing quality

Lex Teams

Paid add-on

Unlimited group use of Lex folders
チーム協力機能

Pros & Cons

Pros

Clean, minimal interface that reduces distractions while writing
Access to top-tier AI models including GPT-4.1 and Claude 4 Opus
Real-time collaboration works smoothly with no app download needed
Version history lets you experiment without losing work
AI can generate title ideas with a single click

Cons

Free tier only includes basic AI models, which feel noticeably weaker
No track changes feature yet (listed as coming soon)
Mobile experience is limited to the mobile web version — no dedicated iOS or Android app yet

Frequently Asked Questions

What is the benefit of upgrading to Lex Pro?

You get access to the biggest and best AIモデル like GPT-4.1 and Claude 4 Opus & Sonnet. These produce noticeably better writing quality. You also get early access to new features and priority email support.

Is Lex secure and private?

Yes. All your data is hosted on Lex's own database with strict access policies. The team will always ask for your explicit permission before accessing your documents.

Is my writing used to train the AI?

No. Lex uses models from OpenAI, アンソロピック, and TogetherAI through enterprise APIs. These have stronger privacy protections than consumer accounts. Lex pays for that additional privacy on your behalf.

Can I use Lex with my team for free?

Yes. Sharing and collaborating on documents is free. If you want unlimited group use of Lex folders, you can add a Lex Teams subscription.

返金はありますか？

Yes. If you don't love Lex after a month, you can reach out and get a refund.