GTM AI Index
Index Marketing Loyalty › GrowSurf vs Referral Factory
Loyalty, advocacy and referrals · September 2026 Edition

GrowSurf vs Referral Factory

Two of twelve models named GrowSurf first on the direct prompt; zero named Referral Factory. GrowSurf was named by ten of the twelve models and Referral Factory by eight and GrowSurf carries 14 labels and Referral Factory 12, so the shares are not directly comparable.

GrowSurf

accepted challenger

Named in two categories this edition.

Referral Factory

accepted challenger

Named in three categories this edition.

First-choice share5%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%8%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#6A position in a field of 18; printed, not drawn.
Labels1412A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, GrowSurf reading right to left. Rank and label count are printed, not drawn.Referral Rock was named alongside these two in seven of the twelve direct answers. Smile.io vs GrowSurf · Smile.io vs Referral Factory · Referral Rock vs GrowSurf

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; every quote names the model and the prompt it came from. Both figures come from the loyalty, advocacy and referrals page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
GrowSurfFirst choices, of twelve modelsReferral Factory
Direct20
Paraphrase02
Comparative00
Budget-constrained00
Scale-constrained00
Negative001 against Referral Factory
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Across every category in the September 2026 Edition, GrowSurf and Referral Factory were named in the same answer thirty times, of the 91 answers naming GrowSurf and the 116 naming Referral Factory. In those answers Referral Factory took the first choice six times and GrowSurf one.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where GrowSurf and Referral Factory stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GrowSurf Referral Factory first choice named as an alternative argued againstblank: not namedEach cell is one answer, GrowSurf on the left and Referral Factory on the right.

The direct prompt

The plain question, one answer per model, grouped by where GrowSurf and Referral Factory stood in it.

GrowSurf first, Referral Factory not the choice

2 of 12 modelsReferral Factory was named in the answer but not as the choice, or not at all.
Mistral SmallGrowSurf alternatives: PartnerStack, True Loyal
MiniMax M2.5GrowSurf, Referral Rock alternatives: FirstPromoter, Kademi, Zinrelo

Neither was the first choice, one was named

3 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5CustomerGauge alternatives: GrowSurf, Referral Rock, Salesforce Loyalty Management, Zinrelo
GPT-5.4 miniAmbassador alternatives: CustomerGauge, Referral Factory, Salesforce Loyalty Management
Llama 4 Maverickno first choice alternatives: GrowSurf, Referral Rock

Neither was named

7 of 12 modelsThe answer made no first choice from these two in this category.
Gemini 3.5 FlashReferral Rock alternatives: Annex Cloud, Influitive, PartnerStack, SaaSquatch
Perplexity SonarCustomerGauge, Open Loyalty alternatives: Talon.One
Grok 4.1 FastInfluitive alternatives: Ambassador, Referral Rock, TrueLoyal
DeepSeek V4 FlashAmbassador alternatives: CustomerGauge, PartnerStack, Referral Rock
Qwen 3.7 FlashInfluitive alternatives: Ambassador, CustomerGauge
Kimi K2Referral Rock, Zinrelo alternatives: Kademi, PartnerStack
GLM 4.7 FlashXTrue Loyal alternatives: Annex Cloud, Open Loyalty, Yotpo Loyalty & Referrals

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Referral Factory leads by eleven points.
Referral Factory11%#3 of 11
GrowSurf0%#6 of 11
The full small business standing →
Mid-marketThe figures above
Level: the same share of first choices.
GrowSurf5%#4 of 18
Referral Factory5%#6 of 18
The full mid-market standing →
Enterprise
Referral Factory leads by two points.
Referral Factory2%#– of 18
GrowSurf0%#– of 18
The full enterprise standing →

What the models said about GrowSurf

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“I'd recommend Referral Rock or GrowSurf as your top choices” MiniMax M2.5 · direct prompt · first choice
“Best Overall for Mid-Market B2B: GrowSurf” Mistral Small · direct prompt · first choice

What the models said about Referral Factory

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.

“Lack of multi-channel support (Referral Factory) ... No dedicated support for the Starter plan” Llama 4 Maverick · negative prompt · soft negative
“I'd generally recommend Referral Factory if your primary goal is to launch and scale a customer referral program quickly” GPT-5.4 mini · paraphrase prompt · first choice
“I'd recommend Referral Factory if your main goal is to launch and scale a customer referral program quickly” Perplexity Sonar · paraphrase prompt · first choice
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.