# Identity resolution: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "identity resolution platform" and as "customer identity matching service", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Page: https://www.gane.ai/index/gtm/gtm-data/identity-resolution/2026-11

**Standing:** Hightouch Adaptive Identity Resolution leads with 28% of first choices; verdict contested. 54 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Hightouch Adaptive Identity Resolution](https://www.gane.ai/index/gtm/vendors/hightouch-adaptive-identity-resolution/index.md) | 28% | 0% | 36 |
| 2 | [FullContact](https://www.gane.ai/index/gtm/vendors/fullcontact/index.md) | 11% | 5% | 22 |
| 3 | [Twilio Segment Unify](https://www.gane.ai/index/gtm/vendors/twilio-segment-unify/index.md) | 7% | 14% | 29 |
| 5 | [Zingg](https://www.gane.ai/index/gtm/vendors/zingg/index.md) | 6% | 8% | 12 |
| 10 | [Salesforce Data Cloud](https://www.gane.ai/index/gtm/vendors/salesforce-data-cloud/index.md) | 2% | 24% | 25 |
| 14 | [Senzing](https://www.gane.ai/index/gtm/vendors/senzing/index.md) | 2% | 15% | 13 |
| 15 | [mParticle IDSync](https://www.gane.ai/index/gtm/vendors/mparticle-idsync/index.md) | 2% | 20% | 10 |
| 23 | [Amperity](https://www.gane.ai/index/gtm/vendors/amperity/index.md) | 0% | 12% | 17 |
| 24 | [Tealium](https://www.gane.ai/index/gtm/vendors/tealium/index.md) | 0% | 11% | 19 |
| 26 | [Adobe Real-Time CDP](https://www.gane.ai/index/gtm/vendors/adobe-real-time-cdp/index.md) | 0% | 10% | 10 |
| 27 | [Treasure Data](https://www.gane.ai/index/gtm/vendors/treasure-data/index.md) | 0% | 8% | 12 |
| 33 | [Informatica MDM](https://www.gane.ai/index/gtm/vendors/informatica-mdm/index.md) | 0% | 33% | 15 |

Rank is by share of first choices among all 125 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

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

- Claude Haiku 4.5: RB2B, Warmly; alternatives Amperity, CaliberMind, CustomerLabs 1PD Ops, Hightouch Adaptive Identity Resolution
- GPT-5.4 mini: Hightouch Adaptive Identity Resolution; alternatives Amperity, Leadspace, Salesforce Data Cloud
- Gemini 3.5 Flash: HubSpot Breeze Intelligence, ZoomInfo; alternatives 6sense, Apollo.io, Leadspace
- Perplexity Sonar: Twilio Segment Unify; alternatives Hightouch Adaptive Identity Resolution, Leadspace, Prospeo, RudderStack Profiles
- Grok 4.20: FullContact; alternatives Amperity, Dun & Bradstreet, LiveRamp Identity Resolution, Twilio Segment Unify
- Mistral Small: Warmly; alternatives Dun & Bradstreet, Informatica MDM, Tealium
- DeepSeek V4 Flash: Hightouch Adaptive Identity Resolution; alternatives FullContact, Prospeo, mParticle IDSync
- Llama 4 Maverick: Hightouch Adaptive Identity Resolution
- Qwen 3.7 Flash: Hightouch Adaptive Identity Resolution; alternatives Apollo.io, D&B Connect, Zingg
- Kimi K2: Twilio Segment Unify; alternatives BlueConic, D&B Connect
- GLM 4.7 FlashX: Oppora, Tomba; alternatives Leadspace
- MiniMax M2.5: Leadspace; alternatives D&B Connect, FullContact
- GPT-6 Luna: HubSpot Breeze Intelligence; alternatives Demandbase, RB2B, Twilio Segment Unify
- Muse Glimmer 30B: Hightouch Adaptive Identity Resolution, Warmly; alternatives CustomerLabs 1PD Ops, FullContact, Prospeo

## Sources the answers cite

77 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- acxiom.com: 38 answers, 38 citations
- g2.com: 35 answers, 55 citations
- usermaven.com: 24 answers, 24 citations
- oppora.ai: 22 answers, 26 citations
- gane.ai/index: 21 answers, 31 citations
- prospeo.io: 19 answers, 21 citations
- directmail.io: 19 answers, 20 citations
- hightouch.com: 18 answers, 36 citations

Pages named in the most answers:

- https://acxiom.com/wp-content/uploads/2025/08/martech-intelligence-report-identity-resolution-platforms.pdf (38 answers)
- https://usermaven.com/blog/identity-resolution-software (24 answers)
- https://oppora.ai/blog/identity-resolution-software (22 answers)
- https://directmail.io/blog/best-identity-resolution-platforms-2026 (19 answers)
- https://g2.com/categories/identity-resolution (19 answers)
- https://prospeo.io/s/identity-resolution-software (16 answers)
- https://softwaresuggest.com/identity-resolution-software (16 answers)
- https://redpointglobal.com/blog/best-identity-resolution-platforms (11 answers)
- https://slashdot.org/software/identity-resolution/f-mid-size-business (11 answers)
- https://gane.ai/index/gtm/gtm-data/identity-resolution/2026-09-expanded (10 answers)

## Warned against

- LiveRamp Identity Resolution: 20 of 44 labels negative. "A class action filed in the Northern District of California was allowed to proceed in 2025... avoid vendors with ongoing litigation, regulatory complaints, or recent platform blocks." (Muse Glimmer 30B, negative prompt)
- Acxiom Real Identity: 10 of 21 labels negative. "What to Avoid for Mid-Market B2B ... Acxiom / Experian – Data bureau strength for consumer data; less agile for B2B" (DeepSeek V4 Flash, direct prompt)
- Experian Identity Resolution: 8 of 20 labels negative. "Acxiom / Experian – Data bureau strength for consumer data; less agile for B2B operational use cases." (DeepSeek V4 Flash, direct prompt)
- Black Crow: 7 of 7 labels negative. "noted for issues with pricing, unproven value, privacy concerns, and support problems" (Mistral Small, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Hightouch Adaptive Identity Resolution at 28%.

- Hightouch Adaptive Identity Resolution: 12% to 28%, +16. Cleared the floor by 5 points · rank 1 of 125, unchanged.
- FullContact: 4% to 11%, +7. Inside the floor by 4 points · rank 6 → 2 of 125.
- Zingg: 10% to 6%, −4. Inside the floor by 7 points · rank 2 → 5 of 125.
- LiveRamp Identity Resolution: 4% to 0%, −4. Inside the floor by 7 points · rank 10 → 90 of 125.
- Salesforce Data Cloud: 0% to 2%, +2. Inside the floor by 9 points · rank 139 → 10 of 125.
- Prospeo: 4% to 2%, −2. Inside the floor by 9 points · rank 7 → 11 of 125.
- Senzing: 0% to 2%, +2. Inside the floor by 9 points · rank 40 → 14 of 125.
- mParticle IDSync: 0% to 2%, +2. Inside the floor by 9 points · rank 131 → 15 of 125.
- Twilio Segment Unify: 6% to 7%, +1. Inside the floor by 10 points · rank 3 of 125, unchanged.
- Amperity: 0% to 0%, ±0. Inside the floor by 11 points · rank 32 → 23 of 125.
- Tealium: 0% to 0%, ±0. Inside the floor by 11 points · rank 41 → 24 of 125.
- Adobe Real-Time CDP: 0% to 0%, ±0. Inside the floor by 11 points · rank 109 → 26 of 125.

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.