GTM AI Index
Index GTM data and infrastructure September 2026 Edition

Identity resolution

Asked as “identity resolution platform”, and as “customer identity matching service”, on behalf of a mid-market B2B company. 48 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.
Standing
Contested
15% of first choices, contested.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

01The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for a mid-market B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrant
01Hightouch15%3%30accepted challenger
02LiveRamp10%47%45criticized challenger
03Segment8%10%31accepted challenger
04Tealium8%16%25accepted challenger
05CustomerLabs 1PD Ops6%0%11accepted challenger
06Prospeo4%0%11accepted challenger
07Demandbase4%18%11accepted challenger
08Amperity4%43%28criticized challenger
09HubSpot Breeze Intelligence2%0%11accepted challenger
Show the nine products at 0%, ordered by negative rate
18Experian0%40%15criticized challenger
17TransUnion0%38%13criticized challenger
15mParticle0%29%17criticized challenger
14Acxiom0%29%14criticized challenger
16Adobe Real-Time CDP0%27%11criticized challenger
13Salesforce Data Cloud0%20%15accepted challenger
12ZoomInfo0%10%10accepted challenger
10FullContact0%0%24accepted challenger
11RB2B0%0%10accepted challenger
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative30%
Key
01Hightouch15%
02LiveRamp10%
03Segment8%
04Tealium8%
05CustomerLabs 1PD Ops6%
06Prospeo4%
07Demandbase4%
08Amperity4%
09HubSpot Breeze Intelligence2%
10FullContact0%
11RB2B0%
12ZoomInfo0%
13Salesforce Data Cloud0%
14Acxiom0%
15mParticle0%
16Adobe Real-Time CDP0%
17TransUnion0%
18Experian0%

02What they warned about

Three of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, GPT-5.4 mini, Gemini 3.5 Flash, Perplexity Sonar, Mistral Small, DeepSeek V4 Flash, Qwen 3.7 Flash, GLM 4.7 FlashX and MiniMax M2.5 changed. 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.
LiveRamp
47%
21 of 45 labels negative · 9 of 12 models · 9 hard negative
“**1. LiveRamp (formerly Acxiom)** - **Why avoid**: The UK's Open Rights Group filed formal ICO complaints in February 2024 alleging unlawful processing” Mistral Small, negative prompt
Amperity
43%
12 of 28 labels negative · 8 of 12 models · 6 hard negative
“Enterprise identity layers** like LiveRamp, Adobe, Salesforce, or Amperity unless the cost of identity errors is very high” Perplexity Sonar, budget prompt
Experian
40%
6 of 15 labels negative · 5 of 12 models · 4 hard negative
“Experian — Repeated data breaches, regulatory action from the CFPB, and poor consumer complaint resolution.” DeepSeek V4 Flash, negative prompt
Persona
100%
5 of 5 labels negative · 5 of 12 models · 4 hard negative
“Frequent technical breakdowns lock users out of accounts; avoid if reliability is critical.” Grok 4.1 Fast, negative prompt

03What they cite

Citations exist only for the models that return a source list: four of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

22 of 72 answers in this category came back with a source list, from 4 of 12 models: citations where the model returns them, or the search results it consulted. 6 of those lists are Google grounding redirects that name no site and are left out of the counts. 187 links across 78 sites, every framing counted. Ranked by the number of answers carrying the site or page. The other 8 models searched through a gateway that returned no source list on this edition.

8 answers · 14 citations · 3 models
vendor site · Guideflow6 answers · 7 citations · 2 models
vendor site · DirectMail.io6 answers · 6 citations · 2 models
vendor site · Prospeo6 answers · 6 citations · 1 model
5 answers · 10 citations · 1 model
vendor site · Hightouch5 answers · 8 citations · 2 models
vendor site · TrustRadius5 answers · 7 citations · 2 models
5 answers · 5 citations · 1 model
5 answers · 5 citations · 2 models
4 answers · 6 citations · 1 model
vendor site · SourceForge4 answers · 4 citations · 2 models
vendor site · Tilores4 answers · 4 citations · 2 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

04How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ModelDirect“What is the best identity resolution platform for a mid-market B2B company?”Paraphrase“Which customer identity matching service would you recommend to a mid-sized B2B company?”Comparative“What are the top identity resolution platforms and how do they differ?”Budget-constrained“What is the best identity resolution platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an identity resolution platform. What should we look at?”Negative“Which identity resolution platforms should I avoid or be cautious about?”
Claude Haiku 4.5Amperity, Tealium
Three alternativesAdobe's Real-Time Customer Data Platform, FullContact, Snitcher
no first choiceChangedLiveRamp
Four alternativesAmperity, Experian, Tealium, TransUnion
no first choice
One alternativeSnowcatCloud
no first choicenothing named
GPT-5.4 miniHightouch, Tealium
Three alternativesSalesforce Data Cloud, Treasure Data, Zeotap
Hightouch Identity ResolutionChanged
Three alternativesExperian Aperture Data Studio, Matchbook AI, Segment
no first choiceDataGroomr, Senzing
One alternativeHightouch
against: Salesforce Data Cloud, Tealium, Treasure Data
no first choiceagainst: Kochava, Mobilewalla, X-Mode Social / Outlogic
Gemini 3.5 FlashOpenprise
Six alternatives6sense, Demandbase, Hightouch, HubSpot Breeze Intelligence, RudderStack, ZoomInfo
against: Adobe Real-Time CDP, Leadspace
LeanDataChanged
Nine alternativesApollo.io, Census, Clay, Factors.ai, Hightouch, HubSpot Breeze Intelligence, RB2B, Traction Complete, ZoomInfo Operations
against: Adobe Real-Time CDP, Segment
Adobe Real-Time CDP, LiveRamp, Segment, Senzing
Six alternativesAmperity, Customers.ai, RB2B, Tilores, TransUnion TruAudience, Warmly
Hightouch
Five alternativesCapturify, FullContact, Opensend, Prospeo, RudderStack
against: Amperity, LiveRamp, Salesforce Data Cloud
Hightouch, RudderStack
One alternativeCensus
against: Segment, mParticle
against: Avast, InMarket, Kochava, Outlogic
Perplexity SonarSegment
Three alternativesHightouch, Prospeo, Tealium
DemandbaseChanged
Three alternativesHightouch, LiveRamp, Segment
no first choiceLeadpipe, Prospeo
Two alternativesCustomerLabs 1PD Ops, RB2B
against: Adobe Real-Time CDP, Amperity, LiveRamp, Salesforce Data Cloud
no first choiceagainst: Segment, Simon Data, Tealium, mParticle
Grok 4.1 FastSegment
Three alternativesCustomerLabs 1PD Ops, Hightouch, Prospeo
against: LiveRamp
SegmentHeld
Three alternativesHightouch, Prospeo, RB2B
against: Amperity, LiveRamp, Warmly
LiveRamp
Nine alternativesAcxiom, Amperity, Experian Identity Resolution, FullContact, Hightouch, Salesforce Data Cloud, Segment, Tealium, mParticle IDSync
dedupe
Three alternativesProspeo, Splink, Zingg
against: Amperity, Hightouch, LiveRamp
Hightouch, LiveRamp
Two alternativesAcxiom, mParticle
against: AU10TIX, ID.me, IDmerit, LiveRamp, Persona, Sumsub, Veriff
Mistral SmallWarmly
Three alternativesLiveRamp, MarketBetter, RB2B
ProspeoChanged
Six alternativesHightouch, HubSpot Breeze Intelligence, RB2B, Tomba, Twilio Segment Unify, Warmly
against: Acxiom, Amperity, Experian, LiveRamp
LiveRamp
Five alternativesAcxiom, CustomerLabs 1PD Ops, Experian, Hightouch Adaptive Identity Resolution, Tealium
CustomerLabs 1PD Ops, Leadpipe
Six alternativesAuthentik, FullContact, Keycloak, Opensend, Ory, Zitadel
against: Amperity, Experian, LiveRamp
no first choiceagainst: AU10TIX, Acxiom, Equifax, Experian Marketing Services, LiveRamp, Persona, TransUnion, Worldcoin, Yoti
DeepSeek V4 FlashHightouch
Four alternatives6sense, CustomerLabs 1PD Ops, Demandbase, ZoomInfo
against: Amperity, LiveRamp, mParticle
Hightouch, LeanDataChanged
Four alternativesCognism, FullContact, Segment, ZoomInfo
against: Amperity, LiveRamp, Tealium, mParticle
no first choice
Nine alternativesAcxiom, Amperity, Experian, FullContact, Hightouch, ID5, InfoSum, LiveIntent, LiveRamp
CustomerLabs 1PD Ops
Two alternativesFullContact, Hightouch
against: Amperity, LiveRamp, mParticle
Hightouch
Two alternativesTealium, mParticle
against: Acxiom, LiveRamp
against: Experian, LiveRamp, TransUnion, Zeta Global
Llama 4 Maverickno first choiceno first choiceHeldLiveRamp
Six alternativesAdobe Real-Time CDP, Amperity, FullContact, Hightouch, Salesforce Data Cloud, Segment
no first choiceno first choicenothing named
Qwen 3.7 FlashDemandbase, HubSpot Breeze Intelligence
Five alternatives6Degrees, 6sense, Blue90, Salesforce Einstein, Terminus
LiveRampChanged
Four alternativesDemandbase, Factors.ai, RB2B, Warmly
LiveRamp
Nine alternativesAdobe Real-Time CDP, Amperity, Experian Marketing Services, Habu, InfoSum, Oracle Data Cloud, Salesforce Data Cloud, Segment, TransUnion
RudderStack
Five alternativesAmplitude, Mixpanel, Segment, Snowflake, dbt
against: LiveRamp, Tealium
no first choice
Three alternativesFullContact, LiveRamp, Tealium
against: Amperity
against: AU10TIX, IDmerit, Persona, Sumsub, Veriff
Kimi K2Apollo.io
Three alternativesFullContact, LeanData, Lusha
against: ZoomInfo
Apollo.ioHeld
Four alternativesCleanlist, Cognism, HubSpot Breeze Intelligence, ZoomInfo
against: 6sense, Demandbase, Leadspace
LiveRamp
Eight alternativesAcxiom, Amperity, Experian, FullContact, Hightouch, Segment, Tealium, mParticle
Jitsu, RudderStack
Four alternativesCustomerLabs 1PD Ops, Hightouch, Leadpipe, Segment
LiveRamp
Six alternativesAmperity, Delivr.ai, FullContact, Hightouch, Segment, Tealium
against: Acxiom, Epsilon, Experian, IDScan.net, IDmerit, LiveRamp, Neustar, Persona, Sumsub, TransUnion
GLM 4.7 FlashXTealium
Two alternativesCustomerLabs, ZoomInfo
against: Amperity, LiveRamp
Abmatic AIChanged
Five alternativesFullContact, Hightouch, HubSpot Breeze Intelligence, Prospeo, ZoomInfo
against: Demandbase, Experian Identity & Fraud, LiveRamp
LiveRamp
Nine alternativesAcxiom Real Identity, Amperity, BlueConic, Experian Identity Resolution, Hightouch Adaptive Identity Resolution, RudderStack, Segment, Tealium, mParticle
against: Jitsu, Snowplow
Leadpipe
Four alternativesFullContact, Hightouch, Prospeo, RB2B
LiveRamp
Four alternativesAcxiom Real Identity, Epsilon CORE ID, Experian Identity Resolution, TransUnion
against: AU10TIX, Databricks, Experian, Facebook, Google, IDmerit, LiveRamp, Persona, Sumsub, TransUnion, Veriff, X
MiniMax M2.5Amperity, Tealium
Three alternativesDirectMail.io, LettrLabs, Segment
LiveRamp, SegmentChangedHightouch, LiveRamp
Four alternativesAcxiom, Experian, Segment, Tealium
CustomerLabs 1PD Ops
Two alternativesFullContact, Leadpipe
against: Amperity, Experian, LiveRamp, TransUnion
no first choiceagainst: IDScan.net, LiveRamp, Oracle Unity
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Seventy-two rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 02:06yes76 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 04:27yes36 s
Direct recommendationGemini 3.5 Flashgemini-3.5-flash2026-09-14 23:08yes1927 s
Direct recommendationPerplexity Sonarsonar2026-09-15 01:11yes207 s
Direct recommendationGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-14 23:51yes08 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-09-15 03:22yes011 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 01:42yes029 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 03:14yes02 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 04:30no026 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-09-15 02:46yes035 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 04:56yes047 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 00:13yes021 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 03:46no04 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 00:20yes36 s
ParaphraseGemini 3.5 Flashgemini-3.5-flash2026-09-15 01:31yes1620 s
ParaphrasePerplexity Sonarsonar2026-09-15 02:31yes205 s
ParaphraseGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 00:32yes011 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-09-15 02:49yes011 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-14 22:53yes037 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 04:30yes02 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-14 23:06yes018 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-09-15 01:58yes030 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 00:02yes071 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 03:30yes028 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 02:04yes1210 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 03:38yes98 s
ComparativeGemini 3.5 Flashgemini-3.5-flash2026-09-15 00:19yes2428 s
ComparativePerplexity Sonarsonar2026-09-15 01:41yes2011 s
ComparativeGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 01:42yes07 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-09-14 23:24yes08 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-14 23:16yes061 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 02:16yes02 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 01:06yes042 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-09-15 03:15yes050 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 03:18yes0279 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 05:07yes010 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-14 23:04yes86 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 00:39yes35 s
Budget constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-15 04:32yes1720 s
Budget constrainedPerplexity Sonarsonar2026-09-15 02:29yes2012 s
Budget constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 01:50yes08 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-09-15 00:06yes011 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 03:21yes028 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 00:44yes02 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-14 23:54no037 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-15 04:51yes042 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 02:00yes0106 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-14 22:53yes018 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 03:17no05 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 01:25yes58 s
Scale constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-15 03:00yes1524 s
Scale constrainedPerplexity Sonarsonar2026-09-15 02:03yes208 s
Scale constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 00:01yes07 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-09-15 03:02yes07 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 01:18yes054 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 01:16yes04 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 05:07yes048 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-15 02:17yes032 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-14 23:44yes0119 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 00:40yes012 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 03:12yes138 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 01:33yes46 s
Negative framingGemini 3.5 Flashgemini-3.5-flash2026-09-15 04:29yes2027 s
Negative framingPerplexity Sonarsonar2026-09-15 04:53yes208 s
Negative framingGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 04:11yes010 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-09-15 00:23yes015 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 03:38yes042 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 02:01yes02 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 03:15yes042 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-09-15 02:59yes095 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-14 23:32yes0135 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 04:33yes031 s

Noise floor in this category

Flips between the edition run and its calibration repeat. Six prompts per model is a small sample; the index-wide floor is the number to trust.

Claude Haiku 4.5
3 of 4 flipped
GPT-5.4 mini
2 of 3 flipped
Gemini 3.5 Flash
5 of 5 flipped
Perplexity Sonar
3 of 3 flipped
Grok 4.1 Fast
4 of 6 flipped
Mistral Small
3 of 5 flipped
DeepSeek V4 Flash
4 of 5 flipped
Llama 4 Maverick
2 of 2 flipped
Qwen 3.7 Flash
4 of 4 flipped
Kimi K2
5 of 6 flipped
GLM 4.7 FlashX
4 of 5 flipped
MiniMax M2.5
3 of 4 flipped

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
Adobe read as Adobe Real-Time CDP
HubSpot (Identity Analytics) read as HubSpot Breeze Intelligence
Oracle read as Oracle Unity
Salesforce read as Salesforce Data Cloud
Salesforce (Einstein Identity) read as Salesforce Data Cloud
Unresolved, counted raw
6Degrees
Acquia Customer Data Platform
Adobe's Real-Time Customer Data Platform
Amazon Connect Customer Profiles / Identity Resolution
Authentik
Avast
Blue90
Clearbit Breeze
Drawbridge
Epsilon CORE ID
Epsilon PeopleCloud / COREid
Experian Identity Graph
Eyeota
Google
Google PAIR
Identity Digital
Keycloak
LiveRamp RampID
Lotame Panorama ID
Matchbook AI
Narrative
Optimizely Data Platform
Oracle Data Cloud
Ory
SnowcatCloud
Stirista
Unified ID 2.0/UID2
Worldcoin (Tools for Humanity)
Yoti
Zitadel
login.gov
Discontinued, still offered
No shut-down product was recommended here.
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