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

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

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 ↗

QuillBot

Paraphraser, summarizer and grammar checker with a free tier

7.3 /10

Pricing: Free plan, paid from $19.95/mo

Pros

Free paraphraser, summarizer and grammar checker
Citation generator and AI detector are free
Annual Premium works out to $8.33/month
Subscriptions can be paused

Cons

Free paraphraser is capped at 125 words and 2 modes
Monthly Premium ($19.95) is poor value compared with annual
Rewording tools, not a drafting assistant for original content
Does not disclose its AI models

Visit QuillBot ↗

Lex vs QuillBot at a glance

	Lex	QuillBot
Editor score	6.7 / 10	7.3 / 10
Pricing model	Freemium	Freemium
Starting price	Free	$19.95/mo
Reader upvotes	0	0
Best for	editor, writing, feedback	paraphrasing, summarizer, grammar
Model choice	Yes	No
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	No
Content Credentials	No	No
Mobile app	Yes	No
20+ languages	No	No
Makes	Blog posts & articles, Emails & newsletters, Books & fiction, Scripts & outlines	Blog posts & articles, Emails & newsletters, Ad & marketing copy
AI models inside	2	0

Our pick

QuillBot edges it with a score of 7.3 versus 6.7. QuillBot is the better fit if you value: free paraphraser, summarizer and grammar checker, citation generator and ai detector are free. 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.