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Market intelligence platforms · November 2026 Edition

Apollo.io vs Similarweb

Five of fourteen models named Apollo.io first on the direct prompt; zero named Similarweb. Apollo.io was named by thirteen of the fourteen models and Similarweb by thirteen and Apollo.io carries 30 labels and Similarweb 38, so the shares are not directly comparable.

Apollo.io

accepted challenger

San Francisco, United States, founded 2015. Named in twenty-two categories this edition.

Similarweb

accepted challenger

Named in six categories this edition.

First-choice share22%6%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate3%8%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#3A position in a field of 13; printed, not drawn.
Labels3038A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Apollo.io reading right to left. Rank and label count are printed, not drawn.Klue was named alongside these two in ten of the fourteen direct answers. Apollo.io vs ZoomInfo · Apollo.io vs Crunchbase · Apollo.io vs AlphaSense

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 market intelligence 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.
Apollo.ioFirst choices, of fourteen modelsSimilarweb
Direct50
Paraphrase50
Comparative00
Budget-constrained13
Scale-constrained00
Negative001 against Apollo.io · 3 against Similarweb
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 Apollo.io and Similarweb stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
Apollo.io Similarweb first choice named as an alternative argued againstblank: not namedEach cell is one answer, Apollo.io on the left and Similarweb on the right.

The direct prompt

The plain question, one answer per model, grouped by where Apollo.io and Similarweb stood in it.

Apollo.io first, Similarweb an alternative

5 of 14 modelsSimilarweb was named in the answer but not as the choice, or not at all.
Grok 4.20Apollo.io, ZoomInfo alternatives: Crayon, Crunchbase, HubSpot Marketing Hub, Klue, Similarweb
DeepSeek V4 FlashApollo.io alternatives: 6sense, Bombora, Crayon, HubSpot Breeze Intelligence, HubSpot Marketing Hub, Klue, ZoomInfo
Qwen 3.7 FlashApollo.io alternatives: 6sense, Bombora, Crayon, Klue
Kimi K2Apollo.io alternatives: HG Insights, HubSpot Marketing Hub, Klue, Similarweb
GLM 4.7 FlashXApollo.io, Prospeo alternatives: HockeyStack, HubSpot Marketing Hub

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5ZoomInfo alternatives: Apollo.io, Bombora, Crunchbase
Perplexity SonarZoomInfo alternatives: Apollo.io, Crayon, Demandbase, HG Insights, Klue, Similarweb
Mistral SmallHubSpot Marketing Hub alternatives: Apollo.io, Contify, Klue, ReachStream
Llama 4 MaverickHubSpot Marketing Hub alternatives: Apollo.io, Crayon, Prospeo, ZoomInfo
GPT-6 LunaCrayon, Klue alternatives: Contify, Semrush .Trends, Similarweb

Neither was named

4 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniContify alternatives: Klue, ZoomInfo
Gemini 3.5 FlashAlphaSense, HG Insights, Klue alternatives: Contify, Crayon, Demandbase, ZoomInfo
MiniMax M2.5ZoomInfo alternatives: Crunchbase, Demandbase, HG Insights
Muse Glimmer 30BHubSpot Marketing Hub, ZoomInfo alternatives: 6sense, Bombora, Crayon, Klue

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
Apollo.io leads by thirty points.
Apollo.io39%#1 of 20
Similarweb9%#2 of 20
The full small business standing →
Mid-marketThe figures above
Apollo.io leads by sixteen points.
Apollo.io22%#1 of 13
Similarweb6%#3 of 13
The full mid-market standing →
Enterprise
Apollo.io leads by four points.
Apollo.io4%#– of 18
Similarweb0%#12 of 18
The full enterprise standing →

What the models said about Apollo.io

No label in this category carried a quote.

What the models said about Similarweb

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.

“Similarweb, Semrush, and comparable products estimate online behavior; they should not automatically be treated as audited revenue, customer counts, or total market share.” Perplexity Sonar · negative prompt · soft negative
“The best market intelligence platform for a company with a limited budget is Similarweb, with a starting price of $125/month.” Llama 4 Maverick · budget prompt · first choice
“If you can spend ~$100–$150/month, Similarweb or Semrush provide the best ROI for digital market intelligence.” Qwen 3.7 Flash · budget prompt · first choice
“Similarweb is the overall pick for market intelligence in 2026.” Muse Glimmer 30B · budget prompt · first choice
Also compared

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.