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Best documentation platform for developer docs

3 models · updated 2026-06-29

The verdict

Mintlify leads — All 3 models rank Mintlify the top startup.

Combined ranking

  1. 1
    Mintlify—15 pts
    GPT #1Claude #1Gemini #1· Fastest modern hosted docs with polished DX and AI-native workflows.
  2. 2
    ReadMe—10 pts
    GPT #3Claude #3Gemini #2· Powerful interactive API reference generation and user usage insights.
  3. 3
    Fern—5 pts
    GPT #2Claude —Gemini #5· Best API-first docs platform with strong SDK and OpenAPI automation.
  4. 4
    GitBook—4 pts
    GPT —Claude #4Gemini #4· Clean editing experience with strong Git sync and growing AI features.
  5. 5
    Redocly—2 pts
    GPT #4Claude —Gemini —· Strong OpenAPI governance and enterprise-grade API documentation.
  6. 6
    Docated/Astro Starlight—1 pts
    GPT —Claude #5Gemini —· Lightweight, fast open-source docs built on Astro with excellent performance.

Not ranked (incumbents): Docusaurus

By model

ChatGPT

  1. 1.Mintlify
  2. 2.Fern
  3. 3.ReadMe
  4. 4.Redocly
  5. 5.Docusaurus

Claude

  1. 1.Mintlify
  2. 2.Docusaurus
  3. 3.ReadMe
  4. 4.GitBook
  5. 5.Docated/Astro Starlight

Gemini

  1. 1.Mintlify
  2. 2.ReadMe
  3. 3.Docusaurus
  4. 4.GitBook
  5. 5.Fern

Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled continuously