Customer data platforms · November 2026 Edition
RudderStack vs Klaviyo Data Platform
Zero of fourteen models named RudderStack first on the direct prompt; zero named Klaviyo Data Platform. RudderStack was named by fourteen of the fourteen models and Klaviyo Data Platform by ten and RudderStack carries 39 labels and Klaviyo Data Platform 13, so the shares are not directly comparable.
Named in seven categories this edition.
By Klaviyo, Boston, United States, founded 2012. Named in two categories this edition.
First-choice share15%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%15%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#7A position in a field of 14; printed, not drawn.
Labels3913A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, RudderStack reading right to left. Rank and label count are printed, not drawn.Segment was named alongside these two in thirteen of the fourteen direct answers. Segment vs RudderStack · Segment vs Klaviyo Data Platform · RudderStack vs Hightouch
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the customer data platforms page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
RudderStackFirst choices, of fourteen modelsKlaviyo Data Platform
Direct00
Paraphrase00
Comparative00
Budget-constrained811 against Klaviyo Data Platform
Scale-constrained00
Negative001 against Klaviyo Data Platform
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where RudderStack and Klaviyo Data Platform stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | | |||||
| Gemini 3.5 Flash | | | ||||
| Perplexity Sonar | | | | | ||
| Grok 4.20 | | | | | ||
| Mistral Small | | |||||
| DeepSeek V4 Flash | | | | | ||
| Llama 4 Maverick | | | ||||
| Qwen 3.7 Flash | | | | | ||
| Kimi K2 | | | | |||
| GLM 4.7 FlashX | | | | |||
| MiniMax M2.5 | | | | |||
| GPT-6 Luna | | |||||
| Muse Glimmer 30B | | | |
RudderStack Klaviyo Data Platform first choice named as an alternative argued againstblank: not namedEach cell is one answer, RudderStack on the left and Klaviyo Data Platform on the right.The direct prompt
The plain question, one answer per model, grouped by where RudderStack and Klaviyo Data Platform stood in it.
Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.Perplexity SonarSegment alternatives: BlueConic, Hightouch, RudderStack
Grok 4.20Segment alternatives: Hightouch, RudderStack, Salesforce Data Cloud
DeepSeek V4 FlashSegment alternatives: 6sense, Demandbase, Hightouch, RudderStack, Salesforce Data Cloud
Llama 4 MaverickSegment alternatives: RudderStack, Salesforce Data Cloud
Kimi K2Segment alternatives: Hightouch, HubSpot Customer Platform, Lytics, RudderStack
GLM 4.7 FlashXSegment alternatives: Hightouch, RudderStack, Salesforce Data Cloud, Tealium Customer Data Hub
MiniMax M2.5Segment alternatives: BlueConic, Hightouch, RudderStack
Muse Glimmer 30BSegment alternatives: Hightouch, HubSpot CDP, RudderStack, Salesforce Data Cloud
Neither was named
6 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5HubSpot CDP, Oracle Unity alternatives: Blueshift, Hightouch, Salesforce Data Cloud
GPT-5.4 miniSalesforce Data Cloud alternatives: Hightouch, Segment
Gemini 3.5 FlashCensus, Hightouch alternatives: 6sense Revenue AI, Demandbase, HubSpot CDP, Segment
Mistral SmallBlueConic, Segment alternatives: Salesforce Data Cloud
Qwen 3.7 FlashBlueConic alternatives: Lytics, Salesforce Data Cloud, Segment
GPT-6 LunaHightouch alternatives: HubSpot CDP, Segment
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
RudderStack leads by nine points.
RudderStack9%#3 of 13Klaviyo Data Platform0%#9 of 13Mid-marketThe figures above
RudderStack leads by thirteen points.
RudderStack15%#2 of 14Klaviyo Data Platform2%#7 of 14Enterprise
RudderStack leads by two points.
RudderStack2%#8 of 12Klaviyo Data Platform0%#– of 12What the models said about RudderStack
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.
“often rated best value for small teams... Segment free tier or RudderStack free open-source tier are the usual starting points” Muse Glimmer 30B · budget prompt · first choice
“the strongest default choice is usually RudderStack, especially its Free plan or open-source option” GPT-5.4 mini · budget prompt · first choice
“The Best Overall Free Option: RudderStack ... is the market leader for open-source data infrastructure.” GLM 4.7 FlashX · budget prompt · first choice
What the models said about Klaviyo Data Platform
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.
“Many email marketing tools (like HubSpot or Klaviyo) have added CDP-like features... Why to avoid:” Qwen 3.7 Flash · negative prompt · hard negative
“Best for e-commerce businesses, particularly Shopify-led companies, but costs can rise with contact volume.” Perplexity Sonar · budget prompt · soft negative
“start with Klaviyo (if B2C) or Brevo (for broader needs) as both include CDP-like features at no extra cost” MiniMax M2.5 · budget prompt · first choice
“Best for E-Commerce: Klaviyo ... effectively the de facto CDP for Shopify and WooCommerce stores” Qwen 3.7 Flash · budget prompt · alternative
“If you're in eCommerce, Klaviyo's free plan is likely the smarter starting point” Kimi K2 · budget prompt · alternative
Also compared
Segment vs RudderStackSegment vs Klaviyo Data PlatformRudderStack vs HightouchRudderStack vs BlueConicRudderStack vs HubSpot CDPRudderStack vs Salesforce Data CloudRudderStack vs CensusHightouch vs Klaviyo Data PlatformBlueConic vs Klaviyo Data PlatformHubSpot CDP vs Klaviyo Data PlatformSalesforce Data Cloud vs Klaviyo Data PlatformKlaviyo Data Platform vs CensusAll twenty-eight head-to-head pages and the full CDP standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.