# Referral and partner programs: what AI models recommend, September 2026

Gane Index, September 2026 Edition. Asked as "referral program software" and as "partner ecosystem and referral tracking tool", six framings each, to twelve models with search on, on behalf of a mid-market B2B company. Page: https://www.gane.ai/index/gtm/partner/referral-and-partner-programs/2026-09

This is the permanent record of the September 2026 Edition, published September 15, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/partner/referral-and-partner-programs/index.md

**Standing:** PartnerStack leads with 19% of first choices; verdict contested. 48 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [PartnerStack](https://www.gane.ai/index/gtm/vendors/partnerstack/index.md) | 19% | 10% | 21 |
| 2 | [Referral Rock](https://www.gane.ai/index/gtm/vendors/referral-rock/index.md) | 15% | 3% | 34 |
| 3 | [ReferralCandy](https://www.gane.ai/index/gtm/vendors/referralcandy/index.md) | 10% | 10% | 31 |
| 4 | [Ambassador](https://www.gane.ai/index/gtm/vendors/ambassador/index.md) | 8% | 9% | 22 |
| 6 | [Viral Loops](https://www.gane.ai/index/gtm/vendors/viral-loops/index.md) | 4% | 20% | 20 |
| 11 | [FirstPromoter](https://www.gane.ai/index/gtm/vendors/firstpromoter/index.md) | 2% | 6% | 16 |
| 12 | [Referral Factory](https://www.gane.ai/index/gtm/vendors/referral-factory/index.md) | 2% | 15% | 13 |
| 21 | [GrowSurf](https://www.gane.ai/index/gtm/vendors/growsurf/index.md) | 0% | 11% | 27 |
| 22 | [Friendbuy](https://www.gane.ai/index/gtm/vendors/friendbuy/index.md) | 0% | 15% | 26 |
| 23 | [Extole](https://www.gane.ai/index/gtm/vendors/extole/index.md) | 0% | 12% | 16 |
| 26 | [Talkable](https://www.gane.ai/index/gtm/vendors/talkable/index.md) | 0% | 17% | 12 |
| 31 | [Yotpo Loyalty & Referrals](https://www.gane.ai/index/gtm/vendors/yotpo-loyalty-referrals/index.md) | 0% | 25% | 12 |

Rank is by share of first choices among all 102 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: Cello; alternatives Friendbuy, Influitive, Partnero, Referral Rock
- GPT-5.4 mini: Referral Rock; alternatives Friendbuy, Referral Factory
- Gemini 3.5 Flash: Referral Rock; alternatives GrowSurf, PartnerStack, impact.com Advocate
- Perplexity Sonar: Ambassador; alternatives CustomerGauge, GrowSurf, Referral Rock
- Grok 4.20: Referral Rock; alternatives Ambassador, GrowSurf, Influitive
- Mistral Small: Referral Rock; alternatives Ambassador, Cello, GrowSurf
- DeepSeek V4 Flash: Referral Rock; alternatives Ambassador, GrowSurf
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Cello; alternatives Friendbuy, GrowSurf, Referral Rock
- Kimi K2: Referral Rock; alternatives Ambassador, GrowSurf, Influitive
- GLM 4.7 FlashX: Ambassador, PartnerStack; alternatives GrowSurf, Referral Rock, impact.com
- MiniMax M2.5: Referral Rock; alternatives Mention Me, impact.com

## Sources the answers cite

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

- tremendous.com: 11 answers, 11 citations
- referralcandy.com: 8 answers, 13 citations
- extole.com: 8 answers, 12 citations
- capterra.com: 5 answers, 5 citations
- customergauge.com: 5 answers, 5 citations
- linkjolt.io: 5 answers, 5 citations
- openloyalty.io: 5 answers, 5 citations
- referral-factory.com: 5 answers, 5 citations

Pages named in the most answers:

- https://tremendous.com/blog/referral-marketing-tools (11 answers)
- https://customergauge.com/blog/b2b-referral-software (5 answers)
- https://extole.com/blog/retail-referral-software (5 answers)
- https://firstpromoter.com/blog/best-referral-marketing-software (4 answers)
- https://klaviyo.com/blog/best-referral-marketing-software (4 answers)
- https://thecmo.com/tools/referral-marketing-software (4 answers)
- https://extole.com/blog/referral-software-integrations (3 answers)
- https://affise.com/blog/referral-software (3 answers)
- https://blog.nextbee.com/2026/03/02/best-referral-software-for-b2b-companies-a-strategic-growth-guide-for-2026 (3 answers)
- https://growthmarketingpro.com/referral-program-software (3 answers)

## Warned against

- Friendbuy: 4 of 26 labels negative. "here are the tools you should avoid or scrutinize closely:

### 1. Friendbuy ... frequently flagged for "contractual friction."" (Qwen 3.7 Flash, negative prompt)
- Viral Loops: 4 of 20 labels negative. "Multiple reports of billing issues ... 1-star reviews highlight "deceptive practices" and "waste of money."[" (Grok 4.20, negative prompt)
- Yotpo Loyalty & Referrals: 3 of 12 labels negative. "What to avoid for mid-market B2B" (DeepSeek V4 Flash, direct prompt)
- Ambassador: 2 of 22 labels negative. "Some 1-star reviews describe it as "HORRIBLE" with poor handling of migrations." (Grok 4.20, negative prompt)

## Record

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