GTM AI Index
Index Vendors › GrowthBook · September 2026 Edition
1 category · Ranked

GrowthBook

71Judge labels
6First choices
2Negative labels
12 of 12Models named it
1Category
September 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-09-16.3, every buyer segment counted.
Best standing
8% in Experimentation for enterprise buyers
Rank 10 of 69 in the mid-market standingaccepted challenger
0 of 12 models made it the first choice on the direct prompt; 4% of its 26 labels there were negative.
By buyer segmentRead the same way at every buyer size.
In experimentation · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named GrowthBook for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrant
Experimentation and personalizationMarketing2%10 of 694%26accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for GrowthBook yet. The next is due October 1, 2026. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated GrowthBook across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500000
GPT-5.4 mini00101
Gemini 3.5 Flash03003
Perplexity Sonar10102
Grok 4.1 Fast01214
Mistral Small02002
DeepSeek V4 Flash13004
Llama 4 Maverick00000
Qwen 3.7 Flash01001
Kimi K204105
GLM 4.7 FlashX01102
MiniMax M2.501102

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct2 labelsNone
Paraphrase8 labelsNone
Comparative20 labels5not counted in share
Budget-constrained24 labels6
Scale-constrained6 labelsNone
Negative11 labels1not counted in share
First choiceAlternativeMentionNegative71 labels in all, every segment counted; 6 of the 12 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“the best overall choice is usually GrowthBook if you can self-host it, because it is open-source and "completely free"” Perplexity Sonar · Experimentation · budget prompt · first choice
“Open source + data ownership + cost control → GrowthBook” DeepSeek V4 Flash · Experimentation · comparative prompt · first choice
“Engineering-heavy, cost-conscious | $0 (self-hosted) + hosting | Open source, full control” Kimi K2 · Experimentation · scale prompt · alternative
“Try GrowthBook if you have technical resources and want open-source flexibility” Mistral Small · Experimentation · budget prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“But require devs (no visual editors), best if you have engineering resources.” Grok 4.1 Fast · Experimentation · budget prompt · soft negative

Named alongside

The products named in the same answers as GrowthBook, over the 71 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and GrowthBook was named but was not.
ProductSame answerTook the first choice insteadHead to head
VWO58 of 7113Not in the top three
Optimizely CMS49 of 7110Not in the top three
Statsig48 of 714Not in the top three
Adobe Target39 of 711Not in the top three
AB Tasty37 of 710Not in the top three
Kameleoon29 of 712Not in the top three
Dynamic Yield29 of 711Not in the top three
PostHog28 of 713Not in the top three
Convert25 of 713Not in the top three
Mida22 of 718Not in the top three
A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named GrowthBook. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 10 of the 71 answers that named GrowthBook and are not a share of its labels.

Domains cited

vwo.com9
growthbook.ioYour site8
statsig.com8
amplitude.com6
convert.com4
f6s.com4
geteppo.com4
kameleoon.com4
learn.g2.com4
mida.so4

Forty-seven of the fifty-five domain citations in answers naming GrowthBook came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Names read as GrowthBook

What the judge wrote, as written, with how often. The vendor table decides that these count as GrowthBook; a claim can dispute any of them.
GrowthBook/PostHog 1
Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when GrowthBook's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as GrowthBook, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at growthbook.io is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.

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