Tools

Fern Docs vs Fern SDK Generator

Fern Docs or Fern SDK Generator? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.

In short

Both: Runs commands, Command line, Self-hosted, Official SDKs
Only Fern Docs states: API, Search over your data, Traces and evaluates

Fern Docs

Fern Docs builds hosted developer documentation from Markdown and API specifications, with editing, search, API references, and AI features.

Plans

Free

10 team members
1,000 pages
250 AI credits per month
2,000 page generations per month
Custom domain and subpath
Guides, API references, and changelogs

Enterprise

Price on request

SSO, SCIM, and advanced RBAC
Multiple repos and docs instances
Custom CSS, JavaScript, and React components
Custom layouts and design-system integration
Advanced analytics and data exports
Dedicated infrastructure, with self-hosting available

Prices checked 2026-09-25 on the maker’s page.

Capabilities

Runs commands — “We ship a CLI, Fern Agent, and GitHub Actions so writers, engineers, and agents all contribute to the same repo.” source
Command line — “We ship a CLI, Fern Agent, and GitHub Actions so writers, engineers, and agents all contribute to the same repo.” source
Self-hosted — “Run on our managed cloud, or self-host to meet stricter security, networking, and compliance requirements.” source
API — “Public API” source
Official SDKs — “Plus, add SDKs in 8 supported languages at any time.” source
Search over your data — “Ask Fern is Fern’s AI Search feature, powered by Claude 4.6 Sonnet and Claude 4.5 Haiku with Retrieval Augmented Generation (RAG).” source
Traces and evaluates — “The Dashboard also reports a resolution rate over the last week, month, or year - the percentage of conversations where Ask Fern returned a cited response.” source

Security

SOC 2 Type II — “SOC 2 Type II Report” source
SOC 2 — “SOC 2 Type II Report” source
GDPR — “SOC 2 Type II GDPR CCPA” source

Latest updates

2026-09-18 PHP filter for llms.txt and Markdown output
Pass lang=php to /llms.txt and per-page .md and .mdx URLs to return only PHP SDK code examples.
2026-09-18 Exclude changelogs from llms.txt
Omit changelog sections from llms.txt by adding the excludeChangelog=true query parameter.
2026-09-18 More page suggestions in agent 404 responses
Requests for a nonexistent .md URL now return up to five “Similar pages” suggestions instead of three.

About Fern Docs

Fern SDK Generator

Fern generates typed client SDKs from API specifications, adds tests and custom code, and publishes packages for multiple programming languages.