RudderStack

Named in 41 judge labels across 2 categories by 6 of 6 models in the September 2026 Edition. 4 first choices, 1 negative label. Every number here is derived from the raw labels under vendor table v2026-09-08.5.

Best standing

12% in CDP

Rank 4 of 35 products named in customer data platforms, accepted challenger. 0 of 6 models made it the first choice on the direct prompt; 0% of its 23 labels there were negative.

Standing by category

Every category where a model named RudderStack. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Vertical	First choices	Rank	Negative rate	Labels	Quadrant
Customer data platforms	GTM data and infrastructure	12%	4 of 35	0%	23	accepted challenger
Data warehouse and reverse ETL for marketing	GTM data and infrastructure	2%	5 of 62	6%	18	accepted challenger

By model

How each model treated RudderStack across every prompt where it was named. Six models, six prompts per category.

Model	First choice	Alternative	Mention	Negative	Labels
Claude Opus 5	0	6	3	0	9
Claude Opus 4.8	1	2	4	0	7
GPT-6 Astra	0	7	0	0	7
GPT-5.6 Sol	2	6	0	1	9
Gemini 3.1 Pro	1	4	0	0	5
Perplexity Sonar Pro	0	4	0	0	4

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Often the top recommendation for cost-conscious, developer-oriented teams... Start with RudderStack's free/starter tier” Claude Opus 4.8 · CDP · budget prompt · first choice

“If you have developers but no cash: Self-host an open-source tool like Tracardi or use RudderStack's free tier.” Gemini 3.1 Pro · CDP · budget prompt · first choice

“For a limited budget, RudderStack is currently the best-value default” GPT-5.6 Sol · Warehouse & ETL · budget prompt · first choice

“Best overall on a limited budget: RudderStack” GPT-5.6 Sol · CDP · budget prompt · first choice

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.

“potentially too broad if you only need reverse ETL” GPT-5.6 Sol · Warehouse & ETL · negative prompt · soft negative

Names read as RudderStack

What the judge wrote, as written, with how often. The vendor table decides that these count as RudderStack; a claim can dispute any of them.

RudderStack Free 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 RudderStack, 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.