AI Index / Developer documentation tools

Developer documentation tools

What AI assistants recommend when buyers ask about developer documentation tools — measured weekly across engines, published as open data.

Sample: 42 AI answers · Window: May 21, 2026Jun 18, 2026 (4-week rolling)

#ProductShareTrendEngines
1
Mintlify

mintlify.com

28.6%

avg pos 3.3

CHATGPT 7.1%CLAUDE 85.7%PERPLEXITY 35.7%
Claim
2
GitBook

gitbook.com

26.2%

avg pos 6.5

CHATGPT 14.3%CLAUDE 57.1%PERPLEXITY 35.7%
Claim
3
Docusaurus

26.2%

avg pos 9.4

CHATGPT 21.4%CLAUDE 57.1%PERPLEXITY 28.6%
Claim
4
ReadMe

readme.com

21.4%

avg pos 6.2

CHATGPT 14.3%CLAUDE 57.1%PERPLEXITY 21.4%
Claim
5
Redocly

redocly.com

19%

avg pos 2.2

CHATGPT 7.1%CLAUDE 28.6%PERPLEXITY 35.7%
Claim
6
Swagger/OpenAPI

swagger.io

16.7%

avg pos 3.3

CHATGPT 21.4%CLAUDE 28.6%PERPLEXITY 14.3%
Claim
7
Stoplight

stoplight.io

16.7%

avg pos 6.3

CHATGPT 7.1%CLAUDE 42.9%PERPLEXITY 21.4%
Claim
8
Postman

postman.com

14.3%

avg pos 4.3

CHATGPT 14.3%CLAUDE 28.6%PERPLEXITY 14.3%
Claim
9
Read the Docs

14.3%

avg pos 4.5

CHATGPT 21.4%CLAUDE 28.6%PERPLEXITY 7.1%
Claim
10
MkDocs

mkdocs.org

14.3%

avg pos 13

CHATGPT 21.4%CLAUDE 28.6%PERPLEXITY 7.1%
Claim
11
Redoc

redoc.ly

11.9%

avg pos 8.8

CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
12
Sphinx

9.5%

avg pos 3.7

CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 7.1%
Claim
13
GitHub Releases

github.com

9.5%

avg pos 9

CHATGPT 21.4%PERPLEXITY 7.1%
Claim
14
Slate

slatedocs.com

9.5%

avg pos 19.8

CHATGPT 21.4%CLAUDE 14.3%
Claim
15
OpenAPI

7.1%

avg pos 4

CHATGPT 21.4%
Claim
16
SwaggerHub

swaggerhub.com

7.1%

avg pos 5

CHATGPT 7.1%CLAUDE 14.3%PERPLEXITY 7.1%
Claim
17
Notion

notion.so

4.8%

avg pos 1

CHATGPT 7.1%PERPLEXITY 7.1%
Claim
18
Bump.sh

bump.sh

4.8%

avg pos 3

CLAUDE 14.3%PERPLEXITY 7.1%
Claim
19
Javadoc

4.8%

avg pos 4.5

CHATGPT 7.1%CLAUDE 14.3%
Claim
20
Fern

buildwithfern.com

4.8%

avg pos 9

PERPLEXITY 14.3%
Claim
21
DapperDox

4.8%

avg pos 12

CLAUDE 14.3%PERPLEXITY 7.1%
Claim
22
Opsgenie

atlassian.com

4.8%

avg pos 12

CHATGPT 14.3%
Claim
23
API Blueprint

4.8%

avg pos 15

CHATGPT 7.1%CLAUDE 14.3%
Claim
24
DocFX

dotnet.github.io

4.8%

avg pos 23.5

CHATGPT 14.3%
Claim
25
Apidog

apidog.com

4.8%

CLAUDE 14.3%PERPLEXITY 7.1%
Claim
26
BookStack

4.8%

CLAUDE 28.6%
Claim
27
Ferndesk

ferndesk.com

4.8%

CLAUDE 28.6%
Claim
28
Git

2.4%

avg pos 2

CHATGPT 7.1%
Claim
29
DeveloperHub

developerhub.io

2.4%

avg pos 3

CHATGPT 7.1%
Claim
30
Doxygen

doxygen.nl

2.4%

avg pos 3

CHATGPT 7.1%
Claim
31
Google Slides

docs.google.com

2.4%

avg pos 3

CHATGPT 7.1%
Claim
32
Nuclino

nuclino.com

2.4%

avg pos 4

PERPLEXITY 7.1%
Claim
33
Readme.io

readme.io

2.4%

avg pos 4

CLAUDE 14.3%
Claim
34
Typora

typora.io

2.4%

avg pos 5

PERPLEXITY 7.1%
Claim
35
AsciiDoc

2.4%

avg pos 6

CHATGPT 7.1%
Claim
36
JSDoc

2.4%

avg pos 6

CLAUDE 14.3%
Claim
37
KnowledgeOwl

knowledgeowl.com

2.4%

avg pos 6

PERPLEXITY 7.1%
Claim
38
Markdown

2.4%

avg pos 6

CHATGPT 7.1%
Claim
39
Archbee

archbee.com

2.4%

avg pos 7

PERPLEXITY 7.1%
Claim
40
Astro

astro.build

2.4%

avg pos 7

CLAUDE 14.3%
Claim
41
GitLab

gitlab.com

2.4%

avg pos 7

CHATGPT 7.1%
Claim
42
Next.js

nextjs.org

2.4%

avg pos 7

CLAUDE 14.3%
Claim
43
Slite

slite.com

2.4%

avg pos 7

CHATGPT 7.1%
Claim
44
Tailwind CSS

tailwindcss.com

2.4%

avg pos 8

CLAUDE 14.3%
Claim
45
TiddlyWiki

tiddlywiki.com

2.4%

avg pos 8

CHATGPT 7.1%
Claim
46
Prism.js

prismjs.com

2.4%

avg pos 9

CLAUDE 14.3%
Claim
47
Shiki

2.4%

avg pos 9

CLAUDE 14.3%
Claim
48
Wiki.js

2.4%

avg pos 9

CHATGPT 7.1%
Claim
49
ClickHelp

clickhelp.com

2.4%

avg pos 10

PERPLEXITY 7.1%
Claim
50
Coda

coda.io

2.4%

avg pos 10

CHATGPT 7.1%
Claim
51
Apiary

apiary.io

2.4%

avg pos 25

CHATGPT 7.1%
Claim
52
Storybook

storybook.js.org

2.4%

avg pos 26

CLAUDE 14.3%
Claim
53
Terraform

terraform.io

2.4%

avg pos 26

CLAUDE 14.3%
Claim
54
Aglio

2.4%

avg pos 27

CHATGPT 7.1%
Claim
55
Document360

2.4%

CLAUDE 14.3%
Claim
56
MDX

2.4%

PERPLEXITY 7.1%
Claim
57
Reef

2.4%

CLAUDE 14.3%
Claim
58
Reunite

2.4%

CLAUDE 14.3%
Claim
59
Revel

2.4%

CLAUDE 14.3%
Claim

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