AI Index / Open-source feature flag tools

Open-source feature flag tools

What AI assistants recommend when buyers ask about open-source feature flag tools — measured weekly across engines, published as open data.

Sample: 49 AI answers · Window: May 21, 2026Jun 18, 2026 (4-week rolling)

#ProductShareTrendEngines
1
Unleash

89.8%

avg pos 3.8

CHATGPT 81%CLAUDE 85.7%PERPLEXITY 100%
Claim
2
Flagsmith

flagsmith.com

87.8%

avg pos 4.9

CHATGPT 71.4%CLAUDE 100%PERPLEXITY 100%
Claim
3
GrowthBook

51%

avg pos 7.9

CHATGPT 19%CLAUDE 71.4%PERPLEXITY 76.2%
Claim
4
LaunchDarkly

launchdarkly.com

38.8%

avg pos 6.6

CHATGPT 71.4%CLAUDE 28.6%PERPLEXITY 9.5%
Claim
5
Flipt

32.7%

avg pos 4.2

CLAUDE 42.9%PERPLEXITY 61.9%
Claim
6
FeatBit

26.5%

avg pos 4.7

CLAUDE 42.9%PERPLEXITY 47.6%
Claim
7
OpenFeature

openfeature.dev

20.4%

avg pos 4.8

CLAUDE 14.3%PERPLEXITY 42.9%
Claim
8
GO Feature Flag

18.4%

avg pos 5.4

CLAUDE 14.3%PERPLEXITY 38.1%
Claim
9
FF4J

18.4%

avg pos 10.2

CHATGPT 23.8%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
10
Togglz

18.4%

avg pos 11.4

CHATGPT 42.9%
Claim
11
Split.io

split.io

12.2%

avg pos 14.8

CHATGPT 28.6%
Claim
12
PostHog

posthog.com

10.2%

avg pos 5

CLAUDE 28.6%PERPLEXITY 14.3%
Claim
13
Optimizely

optimizely.com

8.2%

avg pos 8.8

CHATGPT 19%
Claim
14
PostgreSQL

8.2%

avg pos 14.3

CHATGPT 14.3%CLAUDE 14.3%
Claim
15
ConfigCat

8.2%

avg pos 17

CHATGPT 19%
Claim
16
Flagger

6.1%

avg pos 3

CHATGPT 14.3%
Claim
17
MongoDB Atlas

mongodb.com

6.1%

avg pos 7

CHATGPT 9.5%CLAUDE 14.3%
Claim
18
FF4J (Feature Flipping for Java)

ff4j.org

6.1%

avg pos 14.3

CHATGPT 14.3%
Claim
19
Bullet Train

6.1%

avg pos 16.7

CHATGPT 14.3%
Claim
20
Statsig

6.1%

CLAUDE 14.3%PERPLEXITY 9.5%
Claim
21
flagd

6.1%

PERPLEXITY 14.3%
Claim
22
Flipper

flippercloud.io

4.1%

avg pos 5

PERPLEXITY 9.5%
Claim
23
DevCycle

devcycle.com

4.1%

avg pos 7

PERPLEXITY 9.5%
Claim
24
Flick

flick.app

4.1%

avg pos 8

CHATGPT 9.5%
Claim
25
FeatureProbe

featureprobe.io

4.1%

avg pos 12.5

CHATGPT 9.5%
Claim
26
Split

4.1%

avg pos 16

CHATGPT 4.8%PERPLEXITY 4.8%
Claim
27
MySQL

4.1%

avg pos 24

CHATGPT 9.5%
Claim
28
Docker

docker.com

4.1%

avg pos 24.5

CHATGPT 4.8%PERPLEXITY 4.8%
Claim
29
FlagShark

flagshark.com

4.1%

CLAUDE 14.3%PERPLEXITY 4.8%
Claim
30
Flagr

4.1%

PERPLEXITY 9.5%
Claim
31
AWS SNS

aws.amazon.com

2%

avg pos 7

CHATGPT 4.8%
Claim
32
Microsoft Azure API Management

azure.microsoft.com

2%

avg pos 7

CHATGPT 4.8%
Claim
33
Plausible Analytics

plausible.io

2%

avg pos 8

CHATGPT 4.8%
Claim
34
Kubernetes

2%

avg pos 11

PERPLEXITY 4.8%
Claim
35
FeatureFlag

2%

avg pos 13

CHATGPT 4.8%
Claim
36
Kubernetes Operators

kubernetes.io

2%

avg pos 13

CHATGPT 4.8%
Claim
37
Prysm

2%

avg pos 15

CHATGPT 4.8%
Claim
38
Confetti

2%

avg pos 17

CHATGPT 4.8%
Claim
39
Curly

2%

avg pos 19

CHATGPT 4.8%
Claim
40
FeaturePeek

featurepeek.com

2%

avg pos 19

CHATGPT 4.8%
Claim
41
Docker Compose

2%

avg pos 23

PERPLEXITY 4.8%
Claim
42
FeatureFlow

2%

avg pos 29

CHATGPT 4.8%
Claim
43
GoFeatureFlag

gofeatureflag.io

2%

avg pos 29

CHATGPT 4.8%
Claim
44
Google Analytics 4

analytics.google.com

2%

avg pos 29

CHATGPT 4.8%
Claim
45
Angular

angular.io

2%

avg pos 37

CHATGPT 4.8%
Claim
46
Express.js

expressjs.com

2%

avg pos 37

CHATGPT 4.8%
Claim
47
React

2%

avg pos 37

CHATGPT 4.8%
Claim
48
Spring Boot

spring.io

2%

avg pos 37

CHATGPT 4.8%
Claim
49
Vault by HashiCorp

vaultproject.io

2%

avg pos 38

CHATGPT 4.8%
Claim
50
Redis

redis.io

2%

avg pos 47

CLAUDE 14.3%
Claim
51
Apache Kafka

kafka.apache.org

2%

avg pos 50

CLAUDE 14.3%
Claim
52
Amplitude

amplitude.com

2%

CLAUDE 14.3%
Claim
53
WorkOS

workos.com

2%

PERPLEXITY 4.8%
Claim

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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