# Identity resolution for enterprise buyers: what AI models recommend, September 2026

GTM AI Recommendation Index, September 2026 Edition. Asked as "identity resolution platform" and as "customer identity matching service", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://gtm-ai-index.com/gtm-data/identity-resolution/enterprise/

**Standing:** LiveRamp leads with 21% of first choices; verdict contested. 53 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | LiveRamp | 21% | 25% | 44 |
| 2 | Salesforce Data Cloud | 13% | 15% | 20 |
| 3 | Acxiom | 4% | 12% | 16 |
| 4 | Adobe Real-Time CDP | 4% | 10% | 10 |
| 5 | Tealium | 4% | 27% | 26 |
| 6 | Hightouch | 2% | 6% | 18 |
| 7 | Amperity | 2% | 17% | 23 |
| 8 | Demandbase | 2% | 0% | 11 |
| 9 | Experian | 2% | 20% | 20 |
| 10 | mParticle | 2% | 46% | 13 |
| 11 | TransUnion | 0% | 19% | 16 |
| 12 | FullContact | 0% | 10% | 10 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: ZoomInfo; alternatives 6sense, Hightouch Adaptive Identity Resolution, Tilores
- GPT-5.4 mini: Adobe Real-Time CDP B2B Edition, Salesforce Data Cloud; alternatives Tealium, Treasure Data
- Gemini 3.5 Flash: LeanData; alternatives 6sense, ActionIQ, Adobe Real-Time CDP, Demandbase
- Perplexity Sonar: LiveRamp; alternatives Acxiom, Adobe Real-Time CDP, Hightouch Adaptive Identity Resolution, Salesforce Data Cloud
- Grok 4.1 Fast: Leadspace, ZoomInfo; alternatives Oracle Unity, Salesforce Data Cloud
- Mistral Small: LiveRamp Identity Resolution; alternatives Acxiom Real Identity, Experian Identity Resolution Solutions, Hightouch Adaptive Identity Resolution, HubSpot Breeze Intelligence
- DeepSeek V4 Flash: Dun & Bradstreet, LiveRamp; alternatives 6sense, Amperity, Demandbase, Hightouch
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: LiveRamp; alternatives Loqate, Snowflake DigiTrak, Zeta Global
- Kimi K2: Adobe Real-Time CDP, Salesforce Data Cloud; alternatives 6sense, Demandbase, LiveRamp, ZoomInfo
- GLM 4.7 FlashX: Adobe Real-Time CDP, LiveRamp Identity Resolution, Salesforce Data Cloud; alternatives Cognism, Demandbase
- MiniMax M2.5: Acxiom, LiveRamp; alternatives Amperity, Leadspace

## Sources the answers cite

23 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers:

- guideflow.com: 8 answers, 8 citations
- tilores.io: 7 answers, 9 citations
- g2.com: 6 answers, 7 citations
- liveramp.com: 6 answers, 6 citations
- prospeo.io: 6 answers, 6 citations
- gitnux.org: 5 answers, 9 citations
- hightouch.com: 5 answers, 9 citations
- checkthat.ai: 5 answers, 5 citations

Pages named in the most answers:

- https://guideflow.com/blog/identity-resolution-software (8 answers)
- https://prospeo.io/s/identity-resolution-software (6 answers)
- https://checkthat.ai/answers/what-are-the-best-identity-resolution-tools (5 answers)
- https://customerlabs.com/blog/best-identity-resolution-software-tools (5 answers)
- https://devopsschool.com/blog/top-10-identity-resolution-platforms-features-pros-cons-comparison (5 answers)
- https://g2.com/categories/identity-resolution/enterprise (5 answers)
- https://tilores.io/content/best-identity-resolution-platforms-2026 (5 answers)
- https://gitnux.org/best/identity-resolution-software (4 answers)
- https://leadpipe.com/blog/identity-resolution-api-comparison-2026 (4 answers)
- https://worldmetrics.org/best/identity-resolution-software (4 answers)

## Warned against

- Segment: 9 of 18 labels negative. "Enterprise CDPs with Built-in Identity Resolution (e.g., mParticle, Segment, Tealium, Simon Data)... Vendor lock-in is high" (Grok 4.1 Fast, negative prompt)
- LiveRamp: 11 of 44 labels negative. "Significant regulatory and reputational risk... Your enterprise inherits reputational and compliance risk by partnering with a platform under active regulatory attack." (DeepSeek V4 Flash, negative prompt)
- Tealium: 7 of 26 labels negative. "Segment, mParticle, Tealium, Simon Data (and similar CDPs) enforce rigid proprietary data models" (GLM 4.7 FlashX, negative prompt)
- mParticle: 6 of 13 labels negative. "Platforms/Types to Approach with High Caution: Enterprise CDPs with Built-in Identity Resolution (e.g., mParticle, Segment, Tealium, Simon Data)" (Grok 4.1 Fast, negative prompt)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.