| Category | Function | Share | Rank | Negative rate | Labels | Quadrant | Since September 2026 |
|---|---|---|---|---|---|---|---|
| Experimentation and personalization | Marketing | 15% | 3 of 71 | 8% | 25 | accepted challenger | ▲+11Since September 2026: 2% → 13%, +11 points. Past the 11-point floor: movement. Read over the models both editions asked. |
| Product analytics | GTM data and infrastructure | 0% | 20 of 40 | 0% | 1 | under 10 labels · led by Amplitude Analytics at 34% | newNew since September 2026: not ranked then, 0% now. |
| Category | September 2026 | Now | Change | Reading | Rank |
|---|---|---|---|---|---|
| Experimentation | 2% | 13% | ▲+11Since September 2026: 2% → 13%, +11 points. Past the 11-point floor: movement. Read over the models both editions asked. | Moved past the floor | Rank 9 → 3 of 71 |
| Product analytics | 0% | 0% | newNew since September 2026: not ranked then, 0% now. | New this edition | Rank 20 of 40, unchanged |
Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.
The floor is 11 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions
| Model | First choice | Alternative | Mention | Negative | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-5.4 mini | 0 | 1 | 0 | 0 | 1 |
| Gemini 3.5 Flash | 1 | 4 | 0 | 0 | 5 |
| Perplexity Sonar | 1 | 1 | 0 | 0 | 2 |
| Grok 4.20 | 1 | 2 | 0 | 0 | 3 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 1 | 1 | 0 | 0 | 2 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 2 | 1 | 1 | 4 |
| Kimi K2 | 1 | 1 | 0 | 1 | 3 |
| GLM 4.7 FlashX | 1 | 0 | 0 | 0 | 1 |
| MiniMax M2.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-6 Luna | 1 | 0 | 1 | 0 | 2 |
| Muse Glimmer 30B | 1 | 0 | 0 | 0 | 1 |
Verbatim evidence the judge attached to positive labels.
“GrowthBook and PostHog are free to start, and both are open-source so that you can self-host them, making them excellent choices if you want zero upfront costs.” Claude Haiku 4.5 · Experimentation · budget prompt · first choice
“The Alternative: If your program is engineering-led, opt for server-side testing or warehouse-native platforms (such as GrowthBook, Eppo, or PostHog)” Gemini 3.5 Flash · Experimentation · negative prompt · first choice
“GrowthBook is open-source A/B testing and feature-flagging platform, and it is the pick when budget is your tightest constraint.” Muse Glimmer 30B · Experimentation · budget prompt · first choice
“GrowthBook stands out as the best website experimentation and personalization platform for companies with a limited budget.” Grok 4.20 · Experimentation · budget prompt · first choice
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.
“requiring less technical overhead than developer-heavy solutions like GrowthBook” Qwen 3.7 Flash · Experimentation · paraphrase prompt · soft negative
“Open-source, requires more technical setup” Kimi K2 · Experimentation · scale prompt · soft negative
Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 71 of the 72 answers that named GrowthBook and are not a share of its labels.
249 of the 292 domain citations in answers naming GrowthBook came from somebody else's page.
Pages are listed as the models cited them.
Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.
| Kind | Pages | Last 90 days | 2025-10 to 2026-09 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 357 | 75 | 2026-09-24 | ||
| Podcast or video | 91 | undated | |||
| Comparison | 74 | 35 | 2026-09-22 | ||
| Report or ebook | 22 | 0 | 2026-06-02 | ||
| Conference or event | 14 | 9 | 2026-10-15 | ||
| Case study | 13 | undated | |||
| Glossary or explainer | 10 | 7 | 2026-09-21 | ||
| Template or tool | 7 | 0 | 2023-11-28 |
As the event pages on growthbook.io state them, read September 28, 2026.
Every page growthbook.io exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.
An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.
Already following? Everything you follow, with a stop for each.
What GrowthBook's own pages state, read September 28, 2026: growthbook.io, growthbook.io/pricing, trust.growthbook.io, growthbook.io/platform/security, growthbook.io/customers. A claimed page can correct any of them.
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.
A new claim receives the current edition's vendor brief for GrowthBook by email, built from the raw record of the edition. It shows:
GrowthBook is among the products AI models recommend first in Experimentation and personalization this edition. Each badge says so in the buyer's words, names the edition, and links to the standing. The next edition issues a new badge; this one stays true as a record of October 2026.
Badges read on light and dark pages. Alt text carries the claim, the category, the edition and the index, so it stays a citation where the image does not load.