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

Both are popular AI writing assistants. Here is how Lex and Notion AI 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 ↗

Notion AI

AI agent and writer inside Notion docs, wikis and databases

7.7 /10

Pricing: Free plan, paid from $20/mo

Pros

Writes and edits directly in your Notion docs and databases
Model choice including GPT, Claude, Gemini and Grok
Notion Agent runs multi-step tasks; Custom Agents automate recurring ones
Team skills library that can export to SKILL.md for other agents
Notion MCP server connects other AI tools to your workspace

Cons

Full Notion AI requires the Business plan ($20/member annually)
Free and Plus get only a limited AI trial
Premium models and Custom Agents spend extra Notion credits
Only useful if your content lives in Notion

Visit Notion AI ↗

Lex vs Notion AI at a glance

	Lex	Notion AI
Editor score	6.7 / 10	7.7 / 10
Pricing model	Freemium	Freemium
Starting price	Free	$20/mo
Reader upvotes	0	0
Best for	editor, writing, feedback	workspace, notes, agents
Model choice	Yes	Yes
Commercial use	No	No
No watermark (free)	No	No
API	No	No
Official MCP server	No	Yes
MCP client	No	No
Agent Skills	No	No
Brand kit	No	No
Teams	Yes	Yes
Content Credentials	No	No
Mobile app	Yes	Yes
20+ languages	No	No
Makes	Blog posts & articles, Emails & newsletters, Books & fiction, Scripts & outlines	Blog posts & articles, Emails & newsletters, Scripts & outlines, Social media posts
AI models inside	2	4

Our pick

Notion AI edges it with a score of 7.7 versus 6.7. Notion AI is the better fit if you value: writes and edits directly in your notion docs and databases, model choice including gpt, claude, gemini and grok. 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.