Pricing

Everything you need to build better docs

Start free with everything you need to create and publish polished, agent-ready documentation. Upgrade to Pro for team collaboration, more sites, unlimited builds, and a Knowledge Assistant that answers readers’ questions using your content.

Recommended
$29/month
Choose Pro

More sites, team collaboration, unlimited publishing, and AI tools for your team and readers.

Everything in Free, plus:

  • Up to 5 documentation sites
  • Unlimited builds
  • Invite your team
  • Embeddable Knowledge Assistant
  • Additional knowledge sources
  • Writing agent for drafting and revisions
  • Read-only MCP server
  • Knowledge Assistant analytics
  • 500 AI credits included every month

$0/month
Start for free

Everything you need to publish one polished, agent-ready docs site.

Includes:

  • 1 documentation site
  • 5 builds per day
  • Visual editor and GitHub workflow
  • Automatic deployments
  • Custom domain
  • Generated API reference and interactive playground
  • Clean Markdown and llms.txt
  • Local previews with the Radiant CLI

Feature breakdown

Compare Free and Pro

See what every plan includes and where Pro gives your team and readers more.

Free
Pro

Publishing

Documentation sites

Create separate documentation experiences for different products, APIs, or audiences.

Free: 1
Pro: Up to 5

Builds

Publish updates whenever your documentation is ready to share.

Free: 5 / day
Pro: Unlimited

Automatic deployments

Publish updates automatically whenever your connected content changes.

Free: Included
Pro: Included

Custom domains

Serve documentation from a domain your readers already recognize.

Free: Included
Pro: Included

CLI previews

Preview documentation changes locally before publishing them.

Free: Included
Pro: Included

Authoring and collaboration

Visual editor and GitHub workflow

Write visually or work directly with documentation in your repository.

Free: Included
Pro: Included

API reference and playground

Turn OpenAPI definitions into clear, interactive API documentation.

Free: Included
Pro: Included

Agent-ready output

Generate clean Markdown and llms.txt files that AI tools can navigate.

Free: Included
Pro: Included

Team collaboration

Invite teammates to create, review, and manage documentation together.

Free: Not included
Pro: Included

Writing agent

Draft and refine documentation with an AI collaborator in your workspace.

Free: Not included
Pro: Included

Knowledge Assistant and AI

Knowledge Assistant

Give readers grounded answers based on your published documentation.

Free: Not included
Pro: Included

Embed anywhere

Add the Knowledge Assistant to your website or product dashboard.

Free: Not included
Pro: Included

Additional knowledge sources

Connect supporting content so answers can draw from more than your published docs.

Free: Not included
Pro: Included

Knowledge Assistant analytics

See what readers ask and identify where your documentation leaves gaps.

Free: Not included
Pro: Included

Included AI credits

Credits for the Knowledge Assistant and writing agent. Buy more any time; purchased credits never expire.

Free: Not included
Pro: 500 / month

Developer integrations

Programmatic deployments

Trigger deployments and check their status from CI or another server using site-scoped API keys.

Free: Included
Pro: Included

Read-only MCP server

Let compatible AI tools safely search and retrieve your documentation.

Free: Not included
Pro: Included