GTM AI Index
Index Vendors › Umbraco · September 2026 Edition
1 category · Named, not ranked

Umbraco

Named in 2 judge labels across 1 category by 1 of 6 models in the September 2026 Edition. 0 first choices, 2 negative labels. Every number here is derived from the raw labels under vendor table v2026-09-08.5.
Standing
2 labels, too few to rank
A product needs 10 labels in a category before a share or quadrant is stated. Umbraco was named 2 times in Marketing CMS, where Webflow led with 44%. The labels and the evidence are below, counted exactly.

Standing by category

Every category where a model named Umbraco. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryVerticalFirst choicesRankNegative rateLabelsQuadrant
Content management systems for marketing sitesMarketing0%35 of 39100%2under 10 labels · led by Webflow at 44%

By model

How each model treated Umbraco across every prompt where it was named. Six models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Opus 500000
Claude Opus 4.800000
GPT-6 Astra00000
GPT-5.6 Sol00022
Gemini 3.1 Pro00000
Perplexity Sonar Pro00000

What the models said for it

Verbatim evidence the judge attached to positive labels.

No positive label carried a quote.

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.

“Umbraco 8 reached end of life February 24, 2025.” GPT-5.6 Sol · Marketing CMS · negative prompt · hard negative
“not yet EOL, but support ends December 14, 2026; new projects should generally target Umbraco 17 LTS instead” GPT-5.6 Sol · Marketing CMS · negative prompt · soft negative

Names read as Umbraco

What the judge wrote, as written, with how often. The vendor table decides that these count as Umbraco; a claim can dispute any of them.
Umbraco 13 1Umbraco 8 and earlier 1
Is this your product?

Claim this page

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

It does not get any change to labels, shares or quadrants, any preview, or any say over which quotes appear. Sponsorship is separate: a sponsor funds categories or buyer dimensions and is named on what it funded, and the rules are the same for every sponsor.

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