GitBook publishes docs your team writes, with Git Sync on every plan, priced per site plus per user. Ellie Docs drafts the docs from your code, keeps them current on every merge, and doesn't charge for seats. Here's where each one wins.
GitBook syncs docs your team writes. Ellie Docs drafts them from your code, keeps them current, and has no seat fees.
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the bottleneck is writing and updating the docs rather than hosting them, you want Ask AI for readers without an Ultimate plan, or you'd rather not pay per editor as the team grows.
your engineers like writing the docs themselves and keeping them in a repository with Git Sync, you want a docs MCP server on a free plan (GitBook lists one on every plan), or you need custom fonts and subdirectory hosting, which come with Ultimate.
GitBook details from gitbook.com, checked 1 October 2026. Spotted something out of date? Tell us and we'll fix it.
GitBook's Git Sync keeps the docs your team writes in step with a repository, and GitBook Agent comes with every plan: 10 messages a week on Free, full use on Premium and above. Ellie Docs starts from your product's own code. It drafts the help centre, captures screenshots from your logged-in app, and checks each merged PR against what's published.
On GitBook, AI search and 500 AI answers come with Premium, and the Assistant, the Ask AI chat, is on Ultimate at $249 per site a month billed annually. Ellie Docs includes Ask AI on every plan, answering only from your published docs, from 50 answers a month on Free to 10,000 on Scale.
Every GitBook plan adds $12 per user a month on top of the site price, so a team of five on Premium pays $65 + $60. Ellie Docs plans have unlimited editors and no seat fees. Its Growth plan covers 3 projects for $99 a month billed annually.
GitBook lists an MCP server on every plan, including Free. Ellie Docs' MCP connection is for a different job: managing your docs from Claude or Cursor, where you ask what a change affects and review the drafted update. It isn't a docs server for your customers' AI tools, so if that's what you're after, GitBook's is the one to look at.
Like for like: one help centre on your own domain with an AI chat for readers, edited by a team of three. Billed annually.
Your own domain, no badge, 500 AI answers a month, updates on every merged PR, changelog with in-app widget, unlimited editors.
$249 for the site plus 3 × $12 per user. Ultimate is the plan with GitBook Assistant (Ask AI). Your team writes the docs.
$65 for the site plus 3 × $12 per user. Custom domain, AI search and 500 AI answers, but no Assistant chat.
Point Ellie Docs at your published GitBook site during setup and every page comes across as a draft. Ellie drafts from your code alongside, so you can merge the best of both before you switch your domain.
Ellie Docs reads your code from GitHub, but your articles live in Ellie Docs, where you edit them by hand or through the chat. If you want the docs themselves synced with a repository, that's what GitBook's Git Sync does.
No. Every plan has unlimited editors. GitBook adds $12 per user a month to every plan.
No. Its MCP connection is for you, to manage your docs from Claude or Cursor. GitBook lists an MCP server on every plan, including Free.
Connect a repo and read the first draft of your help centre. Free plan, no card.
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