GTM AI Index
Index Partner and channel Referrals › PartnerStack vs FirstPromoter
Referral and partner programs · September 2026 Edition

PartnerStack vs FirstPromoter

One of twelve models named PartnerStack first on the direct prompt; zero named FirstPromoter. PartnerStack was named by eleven of the twelve models and FirstPromoter by eight and PartnerStack carries 21 labels and FirstPromoter 16, so the shares are not directly comparable.

PartnerStack

accepted challenger

Named in six categories this edition.

FirstPromoter

accepted challenger

Named in three categories this edition.

First-choice share19%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate10%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#6A position in a field of 11; printed, not drawn.
Labels2116A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, PartnerStack reading right to left. Rank and label count are printed, not drawn.Referral Rock was named alongside these two in eleven of the twelve direct answers. PartnerStack vs Referral Rock · PartnerStack vs ReferralCandy · PartnerStack vs Ambassador

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 referral and partner programs page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
PartnerStackFirst choices, of twelve modelsFirstPromoter
Direct10
Paraphrase80
Comparative011 against PartnerStack
Budget-constrained011 against PartnerStack
Scale-constrained00
Negative001 against FirstPromoter
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.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where PartnerStack and FirstPromoter 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
PartnerStack FirstPromoter first choice named as an alternative argued againstblank: not namedEach cell is one answer, PartnerStack on the left and FirstPromoter on the right.

The direct prompt

The plain question, one answer per model, grouped by where PartnerStack and FirstPromoter stood in it.

PartnerStack first, FirstPromoter not the choice

1 of 12 modelsFirstPromoter was named in the answer but not as the choice, or not at all.
GLM 4.7 FlashXAmbassador, PartnerStack alternatives: GrowSurf, Referral Rock, impact.com

Neither was the first choice, one was named

1 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashReferral Rock alternatives: GrowSurf, PartnerStack, impact.com Advocate

Neither was named

10 of 12 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Cello alternatives: Friendbuy, Influitive, Partnero, Referral Rock
GPT-5.4 miniReferral Rock alternatives: Friendbuy, Referral Factory
Perplexity SonarAmbassador alternatives: CustomerGauge, GrowSurf, Referral Rock
Grok 4.1 FastReferral Rock alternatives: Ambassador, GrowSurf, Influitive
Mistral SmallReferral Rock alternatives: Ambassador, Cello, GrowSurf
DeepSeek V4 FlashReferral Rock alternatives: Ambassador, GrowSurf
Llama 4 Maverickno first choice
Qwen 3.7 FlashCello alternatives: Friendbuy, GrowSurf, Referral Rock
Kimi K2Referral Rock alternatives: Ambassador, GrowSurf, Influitive
MiniMax M2.5Referral Rock alternatives: Mention Me, impact.com

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
PartnerStack leads by seven points.
PartnerStack15%#2 of 12
FirstPromoter9%#6 of 12
The full small business standing →
Mid-marketThe figures above
PartnerStack leads by seventeen points.
PartnerStack19%#1 of 11
FirstPromoter2%#6 of 11
The full mid-market standing →
Enterprise
PartnerStack leads by fourteen points.
PartnerStack14%#2 of 13
FirstPromoter0%#– of 13
The full enterprise standing →

What the models said about PartnerStack

No label in this category carried a quote.

What the models said about FirstPromoter

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

“rely on cookies that get stripped by Safari ITP and ad blockers” Kimi K2 · negative prompt · soft negative
“Top Recommendation: FirstPromoter ($49/month) - Most practical option for small businesses” MiniMax M2.5 · budget prompt · first choice
“If you run SaaS, choose FirstPromoter (for deep billing logic)” Gemini 3.5 Flash · comparative 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.