# Referral Rock vs SlapFive: which do AI models recommend for loyalty, September 2026

GTM AI Recommendation Index, September 2026 Edition, Loyalty, advocacy and referrals. Three of twelve models named Referral Rock first on the direct prompt; zero named SlapFive. Page: https://gtm-ai-index.com/marketing/loyalty-advocacy-and-referrals/referral-rock-vs-slapfive/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Referral Rock | 22% | #2 of 18 | 0% | 23 | 9 of 12 |
| SlapFive | 2% | #7 of 18 | 0% | 13 | 9 of 12 |

## The direct prompt, model by model

- Gemini 3.5 Flash: referral rock first (first choices: Referral Rock) (alternatives: Annex Cloud, Influitive, PartnerStack, SaaSquatch)
- Kimi K2: referral rock first (first choices: Referral Rock, Zinrelo) (alternatives: Kademi, PartnerStack)
- MiniMax M2.5: referral rock first (first choices: GrowSurf, Referral Rock) (alternatives: FirstPromoter, Kademi, Zinrelo)
- Claude Haiku 4.5: neither first, one named (first choices: CustomerGauge) (alternatives: GrowSurf, Referral Rock, Salesforce Loyalty Management, Zinrelo)
- Grok 4.1 Fast: neither first, one named (first choices: Influitive) (alternatives: Ambassador, Referral Rock, TrueLoyal)
- DeepSeek V4 Flash: neither first, one named (first choices: Ambassador) (alternatives: CustomerGauge, PartnerStack, Referral Rock)
- Llama 4 Maverick: neither first, one named (alternatives: GrowSurf, Referral Rock)
- GPT-5.4 mini: neither named (first choices: Ambassador) (alternatives: CustomerGauge, Referral Factory, Salesforce Loyalty Management)
- Perplexity Sonar: neither named (first choices: CustomerGauge, Open Loyalty) (alternatives: Talon.One)
- Mistral Small: neither named (first choices: GrowSurf) (alternatives: PartnerStack, True Loyal)
- Qwen 3.7 Flash: neither named (first choices: Influitive) (alternatives: Ambassador, CustomerGauge)
- GLM 4.7 FlashX: neither named (first choices: True Loyal) (alternatives: Annex Cloud, Open Loyalty, Yotpo Loyalty & Referrals)

## What the models said about Referral Rock

- "Top Pick: Referral Rock ... highly regarded for mid-market B2B companies because it is built to handle the complexity of longer B2B sales cycles" (Gemini 3.5 Flash, direct prompt, first choice)
- "For most mid-sized B2B companies, I'd recommend starting with Referral Rock for its focused referral capabilities and reasonable pricing" (Mistral Small, paraphrase prompt, first choice)

## What the models said about SlapFive

- "The "All-In-One" Mid-Market Sweet Spot: SlapFive ... this is currently the strongest recommendation." (Qwen 3.7 Flash, paraphrase prompt, first choice)
- "references, customer stories, testimonials, and evidence workflows; Salesforce-native reference management" (DeepSeek V4 Flash, comparative prompt, alternative)
- "*Mid-Market Alternative to Influitive* ... More accessible pricing than Influitive" (Kimi K2, paraphrase prompt, alternative)

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; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.