kitio.aiGitBook vs Documentation.AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. GitBook starts at $65/mo and Documentation.AI starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- GitBook Agent for editing docs
- Embeddable AI assistant
- AI search answers
- Auto-updating translations
- Custom domains and analytics
- AI documentation agent
- Cited AI assistant for readers
- Docs as code with Git
- OpenAPI playground
- Reader and authoring MCP servers
- Versions and localisation
| Feature | GitBook | Documentation.AI |
|---|---|---|
| Best for | Docs platform with an AI agent for writers and an AI assistant for readers | Docs platform whose AI agent drafts updates from code and tickets |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Freemium |
| Starting price | $65/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | GitBook | Documentation.AI |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
GitBook starts at $65/mo and Documentation.AI starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Public branded docs site
- 1 user
- GitBook Agent, 10 messages a week
Essential
$65/mo
- Per site
- $20 of AI credits included
- AI Assistant Ask
- Custom domain and analytics
Ultimate
$249/mo
- Per site
- $100 of AI credits included
- AI Assistant Chat
Enterprise
Contact sales
- SAML SSO
- White-glove migration
- Dedicated support
4 plans
Starter
Free
- 5 editor seats
- Visual web editor
- AI Assistant
- Embeddable docs
Standard
$55/mo billed yearly
- 10 editor seats
- Password-protected docs
- External sources for AI
Pro
$159/mo billed yearly
- Unlimited editor seats
- Private docs with JWT or OAuth
- Advanced analytics
- PDF export
Enterprise
Contact sales
- AI agent and automations
- Docs and authoring MCP servers
- Custom SLAs
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
GitBook
- AI help for both writers and readers
- Translations update with the source
- Free plan for public docs
- AI features consume paid credits
- Each extra user costs $12 a month
- Full Assistant chat only on Ultimate
Documentation.AI
- Docs update from code changes
- Free plan includes AI assistant
- Works for both writers and developers
- Paid prices shown only with yearly billing
- Private docs with login need Pro
- AI usage runs on credits
Which one should you choose?
Choose GitBook if you want:
- AI help for both writers and readers
- Translations update with the source
- Free plan for public docs
Watch out: ai features consume paid credits.
Choose Documentation.AI if you want:
- Docs update from code changes
- Free plan includes AI assistant
- Works for both writers and developers
Watch out: paid prices shown only with yearly billing.
GitBook vs Documentation.AI FAQ
What is the difference between GitBook and Documentation.AI?
GitBook: Docs platform with an AI agent for writers and an AI assistant for readers. Documentation.AI: Docs platform whose AI agent drafts updates from code and tickets. Both are productivity tools.
Is GitBook or Documentation.AI cheaper?
GitBook starts at $65/mo and Documentation.AI starts at See pricing page. Check both pricing pages for current plans.
Do GitBook and Documentation.AI have free plans?
GitBook: Yes. Documentation.AI: Yes.
Who makes GitBook?
GitBook is made by GitBook.
Who makes Documentation.AI?
Documentation.AI is made by Documentation.AI.
Which should I choose, GitBook or Documentation.AI?
Choose GitBook if you value ai help for both writers and readers and translations update with the source. Choose Documentation.AI if you value docs update from code changes and free plan includes ai assistant.