HubSpot Marketing Hub vs Klaviyo
Twelve of fourteen models named HubSpot Marketing Hub first on the direct prompt; zero named Klaviyo. HubSpot Marketing Hub was named by fourteen of the fourteen models and Klaviyo by twelve and HubSpot Marketing Hub carries 52 labels and Klaviyo 26, so the shares are not directly comparable.
By HubSpot, Cambridge, United States, founded 2006. Named in twenty-eight categories this edition.
Boston, United States, founded 2012. Named in thirteen categories this edition.
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 email marketing platforms page.
By framing
HubSpot Marketing HubFirst choices, of fourteen modelsKlaviyo
Across every category in the October 2026 Edition, HubSpot Marketing Hub and Klaviyo were named in the same answer 207 times, of the 987 answers naming HubSpot Marketing Hub and the 390 naming Klaviyo. In those answers Klaviyo took the first choice sixteen times and HubSpot Marketing Hub sixty-three.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | | ||
| GPT-5.4 mini | | | | |||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | ||||
| Grok 4.1 Fast | | | | | ||
| 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 | | | | |
HubSpot Marketing Hub Klaviyo first choice named as an alternative argued againstblank: not namedEach cell is one answer, HubSpot Marketing Hub on the left and Klaviyo on the right.The direct prompt
HubSpot Marketing Hub first, Klaviyo an alternative
12 of 14 modelsKlaviyo was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
1 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.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
HubSpot Marketing Hub24%#2 of 11Klaviyo0%#9 of 11HubSpot Marketing Hub35%#1 of 14Klaviyo2%#6 of 14HubSpot Marketing Hub29%#1 of 13Klaviyo2%#9 of 13What the models said about HubSpot Marketing Hub
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.
“Recommending HubSpot to small businesses is irresponsible, and for everyone except B2B companies doing £1M+ in revenue, it's a trap.” Claude Haiku 4.5 · negative prompt · hard negative
“HubSpot and Salesforce Marketing Cloud (Avoid if you only need email marketing)” Gemini 3.5 Flash · negative prompt · hard negative
“If you're a B2B company with a complex sales cycle, HubSpot remains the most complete option — with caveats. ... Best for B2B Winner: HubSpot with significant cost caveats.” Muse Glimmer 30B · direct prompt · first choice
What the models said about Klaviyo
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“Avoid tools like ... Klaviyo (ecommerce-focused) for serious B2B lead nurturing.” DeepSeek V4 Flash · paraphrase prompt · hard negative
“Category A: The "Growth" Platform (Most Likely Fit) *Examples:* ActiveCampaign, Klaviyo (if E-commerce), Drip, Keap.” Qwen 3.7 Flash · scale prompt · first choice
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.