GTM AI Index
Index Sales › Category 12 of 14 · September 2026 Edition
Sales · 12 · Intent data

B2B intent data providers

Asked as “B2B intent data provider”, and as “B2B buyer intent data vendor”, on behalf of a mid-market B2B software company. 24 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each.
Standing
G2 Buyer Intent and Apollo.io
G2 Buyer Intent and Apollo.io tie at 25%, but they part on sentiment: 8% negative against 30%. The established intent vendors are the criticized ones.

First-choice share

Recommended versus criticized

Every product with at least 10 labels here, on both axes. Leader at 30% or more of first choices; criticized at 25% or more negative labels. Markers are keyed to the table below.
Negative label rate →
25% negative
30% first choices
Criticized challenger
Criticized default
Accepted challenger
Endorsed leader
01
02
03
04
05
06
07
08
09
0%First-choice share →60%

Full standing

#ProductFirst choicesNegative rateLabelsQuadrant
01G2 Buyer Intent25%8%25accepted challenger
02Apollo.io25%30%10criticized challenger
03Bombora17%18%34accepted challenger
046sense8%38%32criticized challenger
05Cognism4%7%14accepted challenger
06ZoomInfo4%36%22criticized challenger
07Dealfront0%0%14accepted challenger
08TrustRadius0%0%12accepted challenger
09Demandbase0%32%28criticized challenger

Warned against

A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.

6sense
38%
12 of 32 labels negative · 6 of 6 models · 2 hard negative
“Enterprise platforms like 6sense and Demandbase are designed for larger organizations with bigger budgets.” Claude Opus 4.8, budget prompt
Demandbase
32%
9 of 28 labels negative · 6 of 6 models · 2 hard negative
“Skip the enterprise platforms for now. Enterprise platforms like 6sense and Demandbase are designed for larger organizations” Claude Opus 4.8, budget prompt
Bombora
18%
6 of 34 labels negative · 5 of 6 models · 1 hard negative
“Avoid enterprise platforms like **6sense**, **Demandbase**, and often **Bombora** if budget is tight” Perplexity Sonar Pro, budget prompt
ZoomInfo
36%
8 of 22 labels negative · 4 of 6 models · 1 hard negative
“Massive privacy lawsuits, aggressive contracts, and data-hostage tactics.” Gemini 3.1 Pro, negative prompt

Held under rewording

Whether each model's first choice on the direct prompt survived the paraphrase in this category, under the strict rule.

Claude Opus 5
Changed
Claude Opus 4.8
Changed
GPT-6 Astra
Changed
GPT-5.6 Sol
Held
Gemini 3.1 Pro
Changed
Perplexity Sonar Pro
Changed

Noise floor in this category

Flips between the edition run and its calibration repeat (simulated until 12 September 2026). Six prompts per model is a small sample; the index-wide floor is the number to trust.
Claude Opus 5
0 of 4 flipped
Claude Opus 4.8
2 of 4 flipped
GPT-6 Astra
0 of 4 flipped
GPT-5.6 Sol
1 of 4 flipped
Gemini 3.1 Pro
1 of 4 flipped
Perplexity Sonar Pro
0 of 4 flipped

What each model said, prompt by prompt

Six framings of the same buying question, each sent to every model in a fresh session with search on. Bold is the first choice, grey the alternatives, red what the answer argued against. Computed from the raw judge labels.
PromptClaude Opus 5Claude Opus 4.8GPT-6 AstraGPT-5.6 SolGemini 3.1 ProPerplexity Sonar Pro
Direct recommendation
What is the best B2B intent data provider for a mid-market B2B software company?
Factors.ai, G2 Buyer Intent, Warmly
Bombora
against: 6sense, Demandbase
6sense, ZoomInfo
Bombora, Cognism, Demandbase, G2 Buyer Intent
G2 Buyer Intent
6sense, Bombora, Demandbase
G2 Buyer Intent
6sense, Bombora, Demandbase
Cognism
Bombora, Dealfront, G2 Buyer Intent
against: 6sense, ZoomInfo
6sense, Bombora
Dealfront, Demandbase, G2 Buyer Intent
Paraphrase
Which B2B buyer intent data vendor would you recommend to a mid-sized B2B software company?
G2 Buyer Intent
Bombora, Dealfront, HG Insights, RB2B +1
against: 6sense, Demandbase
Bombora
6sense, Demandbase, G2 Buyer Intent
against: ZoomInfo
Bombora
6sense, G2 Buyer Intent
G2 Buyer Intent
6sense, Bombora, Demandbase, TechTarget Priority Engine
against: ZoomInfo
Apollo.io, G2 Buyer Intent
Bombora, Dealfront, ZoomInfo
against: 6sense
Bombora
6sense, Cognism, G2 Buyer Intent, ZoomInfo
Comparative
What are the top B2B intent data providers and how do they differ?
Bombora
Cognism, Dealfront, G2 Buyer Intent, Intentsify +4
against: 6sense, Apollo.io, Lusha
Bombora
6sense, Demandbase, G2 Buyer Intent, TechTarget Priority Engine +1
Bombora
6sense, Demandbase, G2 Buyer Intent, Intentsify +3
6sense, Bombora, Demandbase
G2 Buyer Intent, Intentsify, TechTarget Priority Engine, ZoomInfo
Bombora
6sense, Apollo.io, Cognism, Demandbase +5
Bombora
6sense, Cognism, Dealfront, Demandbase +4
Budget constrained
What is the best B2B intent data provider for a company with a limited budget?
RB2B, Warmly
Bombora, Clay, Cognism, G2 Buyer Intent
against: 6sense, Demandbase, ZoomInfo
Apollo.io
Dealfront, RB2B, Saleshandy
against: 6sense, Cognism, Demandbase +1
Apollo.io
Bombora, Dealfront
Apollo.io
Dealfront, RB2B
against: 6sense, Bombora, Demandbase
Apollo.io
Dealfront, Lead411, UpLead
against: 6sense, Bombora, Demandbase +1
Apollo.io
Dealfront, Lead Onion
against: 6sense, Bombora, Demandbase
Scale constrained
We are a 500 person company evaluating a B2B intent data provider. What should we look at?
no first choice
no first choice
no first choice
no first choice
no first choice
no first choice
Negative framing
Which B2B intent data providers should I avoid or be cautious about?
no first choice
against: Bombora, Seamless.AI, ZoomInfo
no first choice
no first choice
against: 6sense, Apollo.io, Bombora +2
no first choice
against: 6sense, Bombora, Demandbase +4
no first choice
6sense, Bombora, Demandbase
against: Apollo.io, Exact Data, Seamless.AI +1
no first choice

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

Category-scoped readings
None. Every name in this category resolved on its own.
Unresolved, counted raw
None awaiting human review.
Discontinued, still offered
No shut-down product was recommended here.

Every prompt and answer

One row per call: the version string exactly as returned, whether the model searched, sources cited, latency and cost. Full answer text is in the responses download on the Data page.
PromptModelVersion stringTime (UTC)SearchedSourcesLatencyCost
Direct recommendationClaude Opus 5claude-opus-52026-09-08 15:30yes2350 s$0.22
Direct recommendationClaude Opus 4.8claude-opus-4-82026-09-08 15:30no022 s$0.06
Direct recommendationGPT-6 Astragpt-6-astra2026-09-08 15:32yes536 s$0.29
Direct recommendationGPT-5.6 Solgpt-5.6-sol2026-09-08 15:33yes748 s$0.23
Direct recommendationGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:32yes1051 s$0.07
Direct recommendationPerplexity Sonar Prosonar-pro2026-09-08 15:31yes2011 s$0.01
ParaphraseClaude Opus 5claude-opus-52026-09-08 15:34yes2158 s$0.25
ParaphraseClaude Opus 4.8claude-opus-4-82026-09-08 15:35yes2454 s$0.20
ParaphraseGPT-6 Astragpt-6-astra2026-09-08 15:36yes431 s$0.29
ParaphraseGPT-5.6 Solgpt-5.6-sol2026-09-08 15:37yes644 s$0.23
ParaphraseGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:36no026 s$0.03
ParaphrasePerplexity Sonar Prosonar-pro2026-09-08 15:35yes2011 s$0.01
ComparativeClaude Opus 5claude-opus-52026-09-08 15:39yes4571 s$0.31
ComparativeClaude Opus 4.8claude-opus-4-82026-09-08 15:40yes2165 s$0.25
ComparativeGPT-6 Astragpt-6-astra2026-09-08 15:42yes1068 s$0.51
ComparativeGPT-5.6 Solgpt-5.6-sol2026-09-08 15:44yes10102 s$0.37
ComparativeGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:41yes1047 s$0.05
ComparativePerplexity Sonar Prosonar-pro2026-09-08 15:40yes2011 s$0.02
Budget constrainedClaude Opus 5claude-opus-52026-09-08 15:45yes4152 s$0.21
Budget constrainedClaude Opus 4.8claude-opus-4-82026-09-08 15:47yes38143 s$0.27
Budget constrainedGPT-6 Astragpt-6-astra2026-09-08 15:49yes531 s$0.42
Budget constrainedGPT-5.6 Solgpt-5.6-sol2026-09-08 15:49yes335 s$0.17
Budget constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:48yes640 s$0.05
Budget constrainedPerplexity Sonar Prosonar-pro2026-09-08 15:47yes209 s$0.01
Scale constrainedClaude Opus 5claude-opus-52026-09-08 15:51yes2670 s$0.21
Scale constrainedClaude Opus 4.8claude-opus-4-82026-09-08 15:51no037 s$0.07
Scale constrainedGPT-6 Astragpt-6-astra2026-09-08 15:53yes453 s$0.22
Scale constrainedGPT-5.6 Solgpt-5.6-sol2026-09-08 15:54yes783 s$0.23
Scale constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:52no034 s$0.03
Scale constrainedPerplexity Sonar Prosonar-pro2026-09-08 15:51yes1813 s$0.02
Negative framingClaude Opus 5claude-opus-52026-09-08 15:56yes4278 s$0.37
Negative framingClaude Opus 4.8claude-opus-4-82026-09-08 15:57yes3468 s$0.29
Negative framingGPT-6 Astragpt-6-astra2026-09-08 16:00yes551 s$0.48
Negative framingGPT-5.6 Solgpt-5.6-sol2026-09-08 16:01yes767 s$0.30
Negative framingGemini 3.1 Progemini-3.1-pro-preview2026-09-08 15:59yes1887 s$0.05
Negative framingPerplexity Sonar Prosonar-pro2026-09-08 15:57yes2014 s$0.02
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