Grammarly vs Lex (2026): Which AI Tool Is Better?

Both are popular AI writing assistants. Here is how Grammarly and Lex stack up on price, strengths and weaknesses, and which one we would pick.

Grammarly

Writing assistant for grammar, tone and rewrites across 1 million+ apps

8.1 /10

Pricing: Free plan, paid from $30/mo

Pros

Works inside Google Docs, Word, Gmail, Outlook, Slack and 1 million+ apps and sites
Free grammar and spelling checks plus 100 AI prompts a month
Pro adds plagiarism and AI-text detection, AI Grader and rewrites
Real-time support in 20+ languages

Cons

Pro costs $30 monthly; the $12 price needs annual billing
Free plan is mostly grammar and spelling
Includes an AI Humanizer, which some schools and clients treat with suspicion
Now part of Superhuman; enterprise sales go through Superhuman Go

Visit Grammarly ↗

Lex

Minimal collaborative writing editor with AI feedback from GPT and Claude

6.7 /10

Pricing: Freemium

Pros

Clean, distraction-free editor that works as a Google Docs replacement
AI feedback acts like a real-time editor instead of writing for you
Pro gives access to GPT and Claude models
Free sharing and live collaboration

Cons

Pricing is not shown on the vendor's pricing page
Small company; feature pace and longevity are uncertain
Track Changes still listed as coming soon
No image or other media generation

Visit Lex ↗

Grammarly vs Lex at a glance

	Grammarly	Lex
Editor score	8.1 / 10	6.7 / 10
Pricing model	Freemium	Freemium
Starting price	$30/mo	Free
Reader upvotes	0	0
Best for	grammar, editing, tone	editor, writing, feedback
Model choice	No	Yes
Commercial use	No	No
No watermark (free)	No	No
API	No	No
Official MCP server	No	No
MCP client	No	No
Agent Skills	No	No
Brand kit	No	No
Teams	Yes	Yes
Content Credentials	No	No
Mobile app	No	Yes
20+ languages	Yes	No
Makes	Emails & newsletters, Blog posts & articles, Ad & marketing copy, Social media posts	Blog posts & articles, Emails & newsletters, Books & fiction, Scripts & outlines
AI models inside	0	2

Our pick

Grammarly edges it with a score of 8.1 versus 6.7. Grammarly is the better fit if you value: works inside google docs, word, gmail, outlook, slack and 1 million+ apps and sites, free grammar and spelling checks plus 100 ai prompts a month. Choose Lex instead if you need: clean, distraction-free editor that works as a google docs replacement, ai feedback acts like a real-time editor instead of writing for you.