AI Index / AI tools for developers writing documentation

Best AI tools for developers writing documentation

What AI assistants actually recommend when buyers ask about ai tools for developers writing documentation — measured weekly across 4 engines, published as open data.

Updated 2026-08-04 · 67 sampled answers · rolling 4-week window · methodology

Rankings are measured from sampled AI answers — never editorial, never paid. Orbator builds AI-visibility tooling; when Orbator itself appears in any category, it is measured by the same rules as everyone else.

Updated weekly67 samples4 enginesmethodology

Sample: 67 AI answers · Window: Jul 7, 2026Aug 4, 2026 (4-week rolling) · trend vs prior 4 weeks (44 answers)

What is the best ai tools for developers writing documentation?

Across 67 sampled AI answers from 4 engines, Mintlify is recommended most often — appearing in 56.7% of recommendations, followed by ReadMe (53.7%) and GitBook (41.8%).

This is a measurement of share of voice across 4 AI engines — not an editorial pick. See the full ranking below.

#ProductShareTrendEngines
1
Mintlify

mintlify.com

Best for: AI recommends Mintlify most when buyers ask best AI tools for developers writing technical documentation (91.7% of those answers)

56.7%

95% CI 44.867.9%

38 mentions · avg pos 5.7

first pick 31.6%

GEMINI 59.3%CHATGPT 50%CLAUDE 42.9%PERPLEXITY 59.3%
Claim
2
ReadMe

readme.com

Best for: AI recommends ReadMe most when buyers ask what AI tool should I use to automatically generate README files from my code (100% of those answers)

53.7%

95% CI 41.965.1%

36 mentions · avg pos 5.6

first pick 27.8%

GEMINI 59.3%CHATGPT 50%CLAUDE 42.9%PERPLEXITY 51.9%
Claim
3
GitBook

gitbook.com

Best for: AI recommends GitBook most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (91.7% of those answers)

41.8%

95% CI 30.753.7%

28 mentions · avg pos 10.7

first pick 10.7%

GEMINI 48.1%CHATGPT 50%CLAUDE 28.6%PERPLEXITY 37%
Claim
4
Swimm

swimm.io

Best for: AI recommends Swimm most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (55.6% of those answers)

35.8%

95% CI 25.447.8%

24 mentions · avg pos 6

first pick 4.2%

GEMINI 37%CHATGPT 16.7%CLAUDE 28.6%PERPLEXITY 40.7%
Claim
5
Fern

buildwithfern.com

Best for: AI recommends Fern most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (75% of those answers)

28.4%

95% CI 1940.1%

19 mentions · avg pos 10.4

first pick 0%

GEMINI 29.6%CHATGPT 50%CLAUDE 28.6%PERPLEXITY 22.2%
Claim
6
DocuWriter.ai

docuwriter.ai

Best for: AI recommends DocuWriter.ai most when buyers ask how do I use AI to keep technical documentation in sync with code changes (58.3% of those answers)

26.9%

95% CI 17.738.5%

18 mentions · avg pos 4.9

first pick 5.6%

GEMINI 7.4%CLAUDE 57.1%PERPLEXITY 44.4%
Claim
7
Git

git-scm.com

Best for: AI recommends Git most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (77.8% of those answers)

26.9%

95% CI 17.738.5%

18 mentions · avg pos 7.9

first pick 16.7%

GEMINI 37%CHATGPT 16.7%CLAUDE 28.6%PERPLEXITY 18.5%
Claim
8
Document360

document360.com

Best for: AI recommends Document360 most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (75% of those answers)

25.4%

95% CI 16.536.9%

17 mentions · avg pos 10.3

first pick 0%

GEMINI 40.7%PERPLEXITY 22.2%
Claim
9
VS Code

code.visualstudio.com

Best for: AI recommends VS Code most when buyers ask what AI tool should I use to automatically generate README files from my code (91.7% of those answers)

23.9%

95% CI 15.335.3%

16 mentions · avg pos 6.1

first pick 0%

GEMINI 33.3%CHATGPT 33.3%CLAUDE 14.3%PERPLEXITY 14.8%
Claim
10
Swagger

Best for: AI recommends Swagger most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (50% of those answers)

20.9%

95% CI 12.932.1%

14 mentions · avg pos 10.3

first pick 14.3%

GEMINI 25.9%CHATGPT 33.3%CLAUDE 14.3%PERPLEXITY 14.8%
Claim
11
Notion

notion.so

Best for: AI recommends Notion most when buyers ask best AI tools for developers writing technical documentation (66.7% of those answers)

20.9%

95% CI 12.932.1%

14 mentions · avg pos 12

first pick 7.1%

GEMINI 29.6%CHATGPT 50%CLAUDE 14.3%PERPLEXITY 7.4%
Claim
12
Docusaurus

docusaurus.io

Best for: AI recommends Docusaurus most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (88.9% of those answers)

19.4%

95% CI 11.730.4%

13 mentions · avg pos 8.2

first pick 23.1%

GEMINI 22.2%CHATGPT 33.3%CLAUDE 14.3%PERPLEXITY 14.8%
Claim
13
DeepWiki

Best for: AI recommends DeepWiki most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (50% of those answers)

14.9%

95% CI 8.325.3%

10 mentions · avg pos 5.8

first pick 10%

GEMINI 14.8%CLAUDE 28.6%PERPLEXITY 14.8%
Claim
14
Kodesage

kodesage.ai

Best for: AI recommends Kodesage most when buyers ask how do I use AI to keep technical documentation in sync with code changes (58.3% of those answers)

14.9%

95% CI 8.325.3%

10 mentions · avg pos 9.7

first pick 0%

GEMINI 18.5%CLAUDE 28.6%PERPLEXITY 11.1%
Claim
15
GitLab

gitlab.com

Best for: AI recommends GitLab most when buyers ask how do I use AI to keep technical documentation in sync with code changes (33.3% of those answers)

14.9%

95% CI 8.325.3%

10 mentions · avg pos 14

first pick 0%

GEMINI 18.5%CHATGPT 33.3%PERPLEXITY 11.1%
Claim
16
ReadmeCodeGen

readmecodegen.com

Best for: AI recommends ReadmeCodeGen most when buyers ask what AI tool should I use to automatically generate README files from my code (83.3% of those answers)

13.4%

95% CI 7.223.6%

9 mentions · avg pos 3

first pick 11.1%

GEMINI 14.8%CLAUDE 14.3%PERPLEXITY 14.8%
Claim
17
Qodo

Best for: AI recommends Qodo most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (50% of those answers)

13.4%

95% CI 7.223.6%

9 mentions · avg pos 8.1

first pick 0%

GEMINI 18.5%CHATGPT 16.7%PERPLEXITY 11.1%
Claim
18
Kapa

Best for: AI recommends Kapa most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (41.7% of those answers)

13.4%

95% CI 7.223.6%

9 mentions · avg pos 12.9

first pick 0%

GEMINI 25.9%CLAUDE 14.3%PERPLEXITY 3.7%
Claim
19
Postman

postman.com

Best for: AI recommends Postman most when buyers ask best AI assistant for auto-generating API docs and code documentation (33.3% of those answers)

11.9%

95% CI 6.221.8%

8 mentions · avg pos 6.5

first pick 12.5%

GEMINI 22.2%CLAUDE 14.3%PERPLEXITY 3.7%
Claim
20
DocuWriter

11.9%

95% CI 6.221.8%

8 mentions · avg pos 7.1

first pick 12.5%

GEMINI 25.9%PERPLEXITY 3.7%
Claim
21
Apidog

apidog.com

10.4%

95% CI 5.220%

7 mentions · avg pos 6.8

first pick 14.3%

GEMINI 11.1%CLAUDE 14.3%PERPLEXITY 11.1%
Claim
22
Scribe

scribe.com

Best for: AI recommends Scribe most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (33.3% of those answers)

10.4%

95% CI 5.220%

7 mentions · avg pos 7.3

first pick 0%

GEMINI 18.5%PERPLEXITY 7.4%
Claim
23
Theneo

10.4%

95% CI 5.220%

7 mentions · avg pos 8.8

first pick 0%

GEMINI 14.8%PERPLEXITY 11.1%
Claim
24
Promptless

Best for: AI recommends Promptless most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (41.7% of those answers)

10.4%

95% CI 5.220%

7 mentions · avg pos 10.9

first pick 0%

GEMINI 18.5%CLAUDE 14.3%PERPLEXITY 3.7%
Claim
25
Stoplight

stoplight.io

9%

95% CI 4.218.2%

6 mentions · avg pos 8

first pick 0%

GEMINI 11.1%CLAUDE 14.3%PERPLEXITY 7.4%
Claim
26
Tabnine

tabnine.com

9%

95% CI 4.218.2%

6 mentions · avg pos 8.3

first pick 0%

GEMINI 14.8%PERPLEXITY 7.4%
Claim
27
GPT

9%

95% CI 4.218.2%

6 mentions · avg pos 15

first pick 0%

GEMINI 11.1%CHATGPT 33.3%PERPLEXITY 3.7%
Claim
28
Ollama

ollama.com

Best for: AI recommends Ollama most when buyers ask what AI tool should I use to automatically generate README files from my code (41.7% of those answers)

7.5%

95% CI 3.216.3%

5 mentions · avg pos 1.3

first pick 60%

GEMINI 14.8%CLAUDE 14.3%
Claim
29
Readme AI

Best for: AI recommends Readme AI most when buyers ask what AI tool should I use to automatically generate README files from my code (75% of those answers)

7.5%

95% CI 3.216.3%

5 mentions · avg pos 1.8

first pick 40%

GEMINI 11.1%PERPLEXITY 7.4%
Claim
30
Documentation.AI

documentation.ai

Best for: AI recommends Documentation.AI most when buyers ask alternatives to the mainstream AI documentation generation platforms for developers (33.3% of those answers)

7.5%

95% CI 3.216.3%

5 mentions · avg pos 5.5

first pick 0%

GEMINI 3.7%PERPLEXITY 14.8%
Claim
31
JSDoc

7.5%

95% CI 3.216.3%

5 mentions · avg pos 6.6

first pick 20%

GEMINI 7.4%CHATGPT 33.3%PERPLEXITY 3.7%
Claim
32
Grammarly

grammarly.com

Best for: AI recommends Grammarly most when buyers ask best AI tools for developers writing technical documentation (33.3% of those answers)

7.5%

95% CI 3.216.3%

5 mentions · avg pos 9.6

first pick 0%

GEMINI 18.5%
Claim
33
GitDocs AI

7.5%

95% CI 3.216.3%

5 mentions · avg pos 10.2

first pick 0%

GEMINI 14.8%PERPLEXITY 3.7%
Claim
34
AI README Generator

marketplace.visualstudio.com

Best for: AI recommends AI README Generator most when buyers ask what AI tool should I use to automatically generate README files from my code (58.3% of those answers)

6%

95% CI 2.314.4%

4 mentions · avg pos 4.3

first pick 0%

GEMINI 7.4%CLAUDE 14.3%PERPLEXITY 3.7%
Claim
35
Docsify

6%

95% CI 2.314.4%

4 mentions · avg pos 6

first pick 0%

GEMINI 14.8%
Claim
36
Doxygen

doxygen.nl

6%

95% CI 2.314.4%

4 mentions · avg pos 6.3

first pick 0%

GEMINI 7.4%CHATGPT 16.7%CLAUDE 14.3%
Claim
37
DeepDocs

6%

95% CI 2.314.4%

4 mentions · avg pos 9.3

first pick 0%

GEMINI 11.1%PERPLEXITY 3.7%
Claim
38
Swagger UI

6%

95% CI 2.314.4%

4 mentions · avg pos 18.8

first pick 25%

GEMINI 7.4%CHATGPT 16.7%CLAUDE 14.3%
Claim
39
MkDocs

mkdocs.org

Best for: AI recommends MkDocs most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (33.3% of those answers)

6%

95% CI 2.314.4%

4 mentions · avg pos 21.5

first pick 0%

GEMINI 3.7%CHATGPT 16.7%CLAUDE 28.6%
Claim
40
Taskade

taskade.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 4.3

first pick 33.3%

GEMINI 11.1%
Claim
41
Ferndesk

ferndesk.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 5

first pick 0%

GEMINI 3.7%PERPLEXITY 7.4%
Claim
42
Falconer

falconer.com

Best for: AI recommends Falconer most when buyers ask how do I use AI to keep technical documentation in sync with code changes (41.7% of those answers)

4.5%

95% CI 1.512.4%

3 mentions · avg pos 6

first pick 0%

GEMINI 3.7%PERPLEXITY 7.4%
Claim
43
AskCodi

askcodi.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 7.3

first pick 0%

GEMINI 11.1%
Claim
44
AutoDoc

fulminoussoftware.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 8.7

first pick 0%

GEMINI 7.4%CHATGPT 16.7%
Claim
45
Codeium

codeium.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 9.3

first pick 0%

GEMINI 11.1%
Claim
46
DeepL

deepl.com

4.5%

95% CI 1.512.4%

3 mentions · avg pos 9.3

first pick 0%

GEMINI 11.1%
Claim
47
Cursor

cursor.sh

4.5%

95% CI 1.512.4%

3 mentions · avg pos 13.7

first pick 0%

GEMINI 7.4%CHATGPT 16.7%
Claim
48
ClickHelp

clickhelp.com

Best for: AI recommends ClickHelp most when buyers ask best AI tools for developers writing technical documentation (41.7% of those answers)

4.5%

95% CI 1.512.4%

3 mentions · avg pos 14

first pick 0%

GEMINI 7.4%PERPLEXITY 3.7%
Claim
49
SSOJet

ssojet.com

Best for: AI recommends SSOJet most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (33.3% of those answers)

4.5%

95% CI 1.512.4%

3 mentions

first pick 0%

PERPLEXITY 11.1%
Claim
50
Read the Docs

readthedocs.org

3%

95% CI 0.810.2%

2 mentions · avg pos 2.5

first pick 50%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
51
GitRead

gitread.dev

Best for: AI recommends GitRead most when buyers ask what AI tool should I use to automatically generate README files from my code (41.7% of those answers)

3%

95% CI 0.810.2%

2 mentions · avg pos 5

first pick 0%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
52
Project Guide

3%

95% CI 0.810.2%

2 mentions · avg pos 5

first pick 0%

GEMINI 7.4%
Claim
53
ReadmeBuddy

3%

95% CI 0.810.2%

2 mentions · avg pos 6

first pick 0%

GEMINI 7.4%
Claim
54
River AI's README Generator

3%

95% CI 0.810.2%

2 mentions · avg pos 6

first pick 0%

GEMINI 7.4%
Claim
55
Docsio

docsio.co

3%

95% CI 0.810.2%

2 mentions · avg pos 7.5

first pick 0%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
56
JetBrains AI Assistant

3%

95% CI 0.810.2%

2 mentions · avg pos 8

first pick 0%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
57
Sphinx

sphinx-doc.org

3%

95% CI 0.810.2%

2 mentions · avg pos 8.5

first pick 0%

GEMINI 3.7%CHATGPT 16.7%
Claim
58
Windsurf

3%

95% CI 0.810.2%

2 mentions · avg pos 10

first pick 0%

GEMINI 7.4%
Claim
59
eesel AI

eesel.ai

Best for: AI recommends eesel AI most when buyers ask best AI tools for developers writing technical documentation (33.3% of those answers)

3%

95% CI 0.810.2%

2 mentions · avg pos 10

first pick 0%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
60
ExplainGitHub

3%

95% CI 0.810.2%

2 mentions · avg pos 10.5

first pick 0%

GEMINI 7.4%
Claim
61
Stoplight Studio

3%

95% CI 0.810.2%

2 mentions · avg pos 11

first pick 0%

GEMINI 7.4%
Claim
62
mightydocs

3%

95% CI 0.810.2%

2 mentions · avg pos 11

first pick 0%

GEMINI 7.4%
Claim
63
ReadMe Ask AI

3%

95% CI 0.810.2%

2 mentions · avg pos 12

first pick 0%

GEMINI 7.4%
Claim
64
Docmost

docmost.com

3%

95% CI 0.810.2%

2 mentions · avg pos 13

first pick 50%

GEMINI 3.7%CHATGPT 16.7%
Claim
65
GitIngest

3%

95% CI 0.810.2%

2 mentions · avg pos 13.5

first pick 0%

GEMINI 7.4%
Claim
66
Glean

glean.com

Best for: AI recommends Glean most when buyers ask how can AI help engineering teams write better developer guides faster (33.3% of those answers)

3%

95% CI 0.810.2%

2 mentions · avg pos 14

first pick 0%

GEMINI 3.7%PERPLEXITY 3.7%
Claim
67
WriteAssist

3%

95% CI 0.810.2%

2 mentions · avg pos 14

first pick 0%

GEMINI 7.4%
Claim
68
Readme.so

readme.so

3%

95% CI 0.810.2%

2 mentions

first pick 0%

PERPLEXITY 7.4%
Claim
69
ReadmeAI / readme-ai

1.5%

95% CI 0.38%

1 mentions · avg pos 1

first pick 100%

PERPLEXITY 3.7%
Claim
70
Open WebUI

1.5%

95% CI 0.38%

1 mentions · avg pos 2

first pick 0%

GEMINI 3.7%
Claim
71
Javadoc

1.5%

95% CI 0.38%

1 mentions · avg pos 3

first pick 0%

GEMINI 3.7%
Claim
72
LocalAI

1.5%

95% CI 0.38%

1 mentions · avg pos 3

first pick 0%

GEMINI 3.7%
Claim
73
kapa.ai

kapa.ai

1.5%

95% CI 0.38%

1 mentions · avg pos 3

first pick 0%

PERPLEXITY 3.7%
Claim
74
Penify

1.5%

95% CI 0.38%

1 mentions · avg pos 5

first pick 0%

PERPLEXITY 3.7%
Claim
75
aidocs-cli

1.5%

95% CI 0.38%

1 mentions · avg pos 5

first pick 0%

GEMINI 3.7%
Claim
76
Komment

1.5%

95% CI 0.38%

1 mentions · avg pos 6

first pick 0%

PERPLEXITY 3.7%
Claim
77
CodeGPT

1.5%

95% CI 0.38%

1 mentions · avg pos 7

first pick 0%

PERPLEXITY 3.7%
Claim
78
Inkeep

1.5%

95% CI 0.38%

1 mentions · avg pos 9

first pick 0%

PERPLEXITY 3.7%
Claim
79
Slate

slatedocs.com

1.5%

95% CI 0.38%

1 mentions · avg pos 9

first pick 0%

GEMINI 3.7%
Claim
80
Verbicode AI

1.5%

95% CI 0.38%

1 mentions · avg pos 9

first pick 0%

CLAUDE 14.3%
Claim
81
DOCKR

1.5%

95% CI 0.38%

1 mentions · avg pos 10

first pick 0%

CLAUDE 14.3%
Claim
82
GitSummarize

1.5%

95% CI 0.38%

1 mentions · avg pos 10

first pick 0%

GEMINI 3.7%
Claim
83
Pieces for Developers

pieces.app

1.5%

95% CI 0.38%

1 mentions · avg pos 13

first pick 0%

CHATGPT 16.7%
Claim
84
CodeSee

1.5%

95% CI 0.38%

1 mentions · avg pos 16

first pick 0%

GEMINI 3.7%
Claim
85
QuillBot

quillbot.com

1.5%

95% CI 0.38%

1 mentions · avg pos 16

first pick 0%

GEMINI 3.7%
Claim
86
CodeWiki

1.5%

95% CI 0.38%

1 mentions

first pick 0%

CLAUDE 14.3%
Claim
87
Dev.to

dev.to

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim
88
Docker

docker.com

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim
89
Fern Docs

1.5%

95% CI 0.38%

1 mentions

first pick 0%

CLAUDE 14.3%
Claim
90
Knowl.ai

1.5%

95% CI 0.38%

1 mentions

first pick 0%

CLAUDE 14.3%
Claim
91
Readme.io

readme.io

1.5%

95% CI 0.38%

1 mentions

first pick 0%

CLAUDE 14.3%
Claim
92
Red Hat Developer Portal

developers.redhat.com

Best for: AI recommends Red Hat Developer Portal most when buyers ask how do I use AI to keep technical documentation in sync with code changes (41.7% of those answers)

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim
93
Startup Stash

startupstash.com

Best for: AI recommends Startup Stash most when buyers ask which AI docs tool is best for open source projects vs internal engineering teams (44.4% of those answers)

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim
94
Treblle

treblle.com

1.5%

95% CI 0.38%

1 mentions

first pick 0%

CLAUDE 14.3%
Claim
95
Workik

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim
96
Workik AI

workik.com

1.5%

95% CI 0.38%

1 mentions

first pick 0%

PERPLEXITY 3.7%
Claim

Reading the numbers: Share is a point estimate on 67 sampled answers, so each row also shows its 95% CI — the Wilson score interval around that share. When two products' intervals overlap, the gap between them isn't statistically meaningful at this sample size. First pick is the share of a product's recommending answers where it was named first, which separates “always mentioned” from “usually the top recommendation”. Full methodology.

Independence: Orbator customers are badged for disclosure. Customer status does not affect prompts, sampling, extraction, or ranking — see the methodology. Your product on this list? Claim it to see the prompts behind your rank and track it weekly.

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