# Identity resolution: what AI models recommend, October 2026

Gane Index, October 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/2026-10

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/gtm-data/identity-resolution/index.md

**Standing:** Hightouch Adaptive Identity Resolution leads with 12% of first choices; verdict contested. 51 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) | 12% | 3% | 34 |
| 3 | [Twilio Segment Unify](https://www.gane.ai/index/gtm/vendors/twilio-segment-unify/index.md) | 6% | 21% | 34 |
| 6 | [FullContact](https://www.gane.ai/index/gtm/vendors/fullcontact/index.md) | 4% | 6% | 16 |
| 7 | [Prospeo](https://www.gane.ai/index/gtm/vendors/prospeo/index.md) | 4% | 0% | 10 |
| 10 | [LiveRamp Identity Resolution](https://www.gane.ai/index/gtm/vendors/liveramp-identity-resolution/index.md) | 4% | 37% | 43 |
| 32 | [Amperity](https://www.gane.ai/index/gtm/vendors/amperity/index.md) | 0% | 25% | 20 |
| 41 | [Tealium](https://www.gane.ai/index/gtm/vendors/tealium/index.md) | 0% | 30% | 20 |
| 52 | [Experian Identity Resolution](https://www.gane.ai/index/gtm/vendors/experian-identity-resolution/index.md) | 0% | 29% | 17 |
| 117 | [Acxiom Real Identity](https://www.gane.ai/index/gtm/vendors/acxiom-real-identity/index.md) | 0% | 38% | 13 |
| 131 | [mParticle IDSync](https://www.gane.ai/index/gtm/vendors/mparticle-idsync/index.md) | 0% | 43% | 14 |
| 139 | [Salesforce Data Cloud](https://www.gane.ai/index/gtm/vendors/salesforce-data-cloud/index.md) | 0% | 48% | 23 |

Rank is by share of first choices among all 139 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: no first choice
- GPT-5.4 mini: Demandbase; alternatives Informatica MDM, Salesforce Data Cloud, Treasure Data, Twilio Segment Unify
- Gemini 3.5 Flash: LeanData; alternatives Hightouch Adaptive Identity Resolution, RB2B, Syncari, Warmly
- Perplexity Sonar: Hightouch Adaptive Identity Resolution; alternatives LiveRamp Identity Resolution, Twilio Segment Unify
- Grok 4.20: Twilio Segment Unify; alternatives Hightouch Adaptive Identity Resolution, RB2B, Visitor Queue
- Mistral Small: LiveRamp Identity Resolution; alternatives Delivr.ai, FullContact, Twilio Segment Unify
- DeepSeek V4 Flash: Hightouch Adaptive Identity Resolution; alternatives CustomerLabs 1PD Ops, Twilio Segment Unify
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Delivr.ai; alternatives LiveRamp Identity Resolution, Twilio Segment Unify
- Kimi K2: Apollo.io; alternatives BlueConic, Leadspace, Twilio Segment Unify, ZoomInfo
- GLM 4.7 FlashX: Twilio Segment Unify; alternatives Hightouch Adaptive Identity Resolution, Prospeo
- MiniMax M2.5: Hightouch Adaptive Identity Resolution; alternatives Demandbase, LiveRamp Identity Resolution, Tealium, Twilio Segment Unify
- GPT-6 Luna: D&B Connect; alternatives Dealfront, RB2B, Twilio Segment Unify
- Muse Glimmer 30B: Leadspace; alternatives HubSpot Breeze Intelligence, Twilio Segment Unify

## 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:

- guideflow.com: 37 answers, 41 citations
- prospeo.io: 37 answers, 40 citations
- sourceforge.net: 28 answers, 41 citations
- oppora.ai: 28 answers, 29 citations
- checkthat.ai: 27 answers, 31 citations
- redpointglobal.com: 27 answers, 31 citations
- liveramp.com: 22 answers, 28 citations
- worldmetrics.org: 22 answers, 23 citations

Pages named in the most answers:

- https://guideflow.com/blog/identity-resolution-software (36 answers)
- https://prospeo.io/s/identity-resolution-software (36 answers)
- https://oppora.ai/blog/identity-resolution-software (28 answers)
- https://checkthat.ai/answers/what-are-the-best-identity-resolution-tools (26 answers)
- https://redpointglobal.com/blog/best-identity-resolution-platforms (26 answers)
- https://scmgalaxy.com/tutorials/top-10-identity-resolution-platforms-features-pros-cons-comparison (22 answers)
- https://devopsschool.com/blog/top-10-identity-resolution-platforms-features-pros-cons-comparison (20 answers)
- https://softwaresuggest.com/identity-resolution-software (18 answers)
- https://worldmetrics.org/best/identity-resolution-software (17 answers)
- https://liveramp.com/blog/5-considerations-for-evaluating-an-identity-resolution-tool (16 answers)

## Warned against

- LiveRamp Identity Resolution: 16 of 43 labels negative. "LiveRamp operates a massive identity surveillance system that ties people's online and offline activity to a single personal identifier, and almost certainly breaks UK and European data protection laws" (Muse Glimmer 30B, negative prompt)
- Salesforce Data Cloud: 11 of 23 labels negative. "Avoid pure enterprise like Salesforce Data Cloud or mParticle unless you have bigger budgets/resources." (Grok 4.20, paraphrase prompt)
- Twilio Segment Unify: 7 of 34 labels negative. "Black-box CDPs like Segment, mParticle, Tealium, and Simon Data when they require rigid schemas, keep the identity graph inside their own system" (Perplexity Sonar, negative prompt)
- Tealium: 6 of 20 labels negative. "you should completely avoid traditional Customer Data Platforms (CDPs) like Amperity, Tealium, or LiveRamp" (Gemini 3.5 Flash, budget prompt)

## Movement since September 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Hightouch Adaptive Identity Resolution at 14%.

- Tealium: 8% to 0%, −8. Inside the floor by 3 points · rank 4 → 44 of 130.
- LiveRamp Identity Resolution: 10% to 5%, −5. Inside the floor by 6 points · rank 2 → 8 of 130.
- CustomerLabs 1PD Ops: 6% to 2%, −4. Inside the floor by 7 points · rank 5 → 14 of 130.
- Amperity: 4% to 0%, −4. Inside the floor by 7 points · rank 12 → 28 of 130.
- Hightouch Adaptive Identity Resolution: 17% to 14%, −3. Inside the floor by 8 points · rank 1 of 130, unchanged.
- FullContact: 0% to 2%, +2. Inside the floor by 9 points · rank 21 → 9 of 130.
- TransUnion TruAudience: 0% to 2%, +2. Inside the floor by 9 points · rank 112 → 10 of 130.
- RB2B: 0% to 2%, +2. Inside the floor by 9 points · rank 22 → 12 of 130.
- Demandbase: 4% to 2%, −2. Inside the floor by 9 points · rank 9 → 27 of 130.
- Twilio Segment Unify: 8% to 7%, −1. Inside the floor by 10 points · rank 3 of 130, unchanged.
- Prospeo: 4% to 5%, +1. Inside the floor by 10 points · rank 8 → 5 of 130.
- HubSpot Breeze Intelligence: 2% to 2%, ±0. Inside the floor by 11 points · rank 13 → 20 of 130.

## Record

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