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Customer success platforms · October 2026 Edition

ChurnZero vs Gainsight Customer Success

Eleven of fourteen models named ChurnZero first on the direct prompt; zero named Gainsight Customer Success. Both were named by all fourteen models and ChurnZero carries 64 labels and Gainsight Customer Success 59, so the shares are not directly comparable.

ChurnZero

endorsed leader

Named in three categories this edition.

Gainsight Customer Success

criticized challenger

Named in one category this edition.

First-choice share42%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate17%54%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#8A position in a field of 10; printed, not drawn.
Labels6459A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, ChurnZero reading right to left. Rank and label count are printed, not drawn.Vitally was named alongside these two in thirteen of the fourteen direct answers. ChurnZero vs Vitally · ChurnZero vs HubSpot Service Hub · ChurnZero vs Custify

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen 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 customer success platforms page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
ChurnZeroFirst choices, of fourteen modelsGainsight Customer Success
Direct1106 against Gainsight Customer Success
Paraphrase1005 against Gainsight Customer Success
Comparative161 against Gainsight Customer Success
Budget-constrained003 against ChurnZero · 3 against Gainsight Customer Success
Scale-constrained415 against Gainsight Customer Success
Negative008 against ChurnZero · 12 against Gainsight Customer Success
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, ChurnZero and Gainsight Customer Success were named in the same answer 147 times, of the 227 answers naming ChurnZero and the 183 naming Gainsight Customer Success. In those answers Gainsight Customer Success took the first choice fifty times and ChurnZero twenty.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where ChurnZero and Gainsight Customer Success 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
GPT-6 Luna
Muse Glimmer 30B
ChurnZero Gainsight Customer Success first choice named as an alternative argued againstblank: not namedEach cell is one answer, ChurnZero on the left and Gainsight Customer Success on the right.

The direct prompt

The plain question, one answer per model, grouped by where ChurnZero and Gainsight Customer Success stood in it.

ChurnZero first, Gainsight Customer Success an alternative

11 of 14 modelsGainsight Customer Success was named in the answer but not as the choice, or not at all.
GPT-5.4 miniChurnZero, Planhat alternatives: Gainsight Customer Success
Gemini 3.5 FlashChurnZero alternatives: Planhat, Totango, Vitally
Perplexity SonarChurnZero alternatives: Vitally
Grok 4.1 FastChurnZero alternatives: Custify, Vitally
Llama 4 MaverickChurnZero alternatives: Skalin, Userpilot, Vitally
Qwen 3.7 FlashChurnZero, Vitally alternatives: Custify, HubSpot Service Hub, Skalin, Totango
Kimi K2ChurnZero alternatives: Totango, Vitally
GLM 4.7 FlashXChurnZero, Vitally alternatives: Totango
MiniMax M2.5ChurnZero, Skalin alternatives: Totango, Vitally
GPT-6 LunaChurnZero alternatives: Planhat, Vitally
Muse Glimmer 30BChurnZero alternatives: ClientSuccess, Custify, Planhat, Skalin, Totango, Vitally

Neither was the first choice, one was named

3 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Vitally alternatives: ChurnZero, ClientSuccess
Mistral SmallSkalin alternatives: ChurnZero, Custify, Gainsight Customer Success, Planhat, Vitally
DeepSeek V4 FlashSkalin alternatives: ChurnZero, ClientSuccess, Custify, Totango, Vitally

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
ChurnZero leads by two points.
ChurnZero2%#7 of 9
Gainsight Customer Success0%#9 of 9
The full small business standing →
Mid-marketThe figures above
ChurnZero leads by forty-one points.
ChurnZero42%#1 of 10
Gainsight Customer Success2%#8 of 10
The full mid-market standing →
Enterprise
The order flips: Gainsight Customer Success leads at enterprise.
Gainsight Customer Success69%#1 of 9
ChurnZero2%#4 of 9
The full enterprise standing →

What the models said about ChurnZero

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

“Avoid enterprise platforms like Gainsight or ChurnZero initially” Kimi K2 · budget prompt · hard negative
“Pricing Escalation... Declining Support Quality... Clunky UI” Kimi K2 · negative prompt · hard negative
“Don't assume it will be plug-and-play... admins handling implementation, data, and advanced features may need extra time” GPT-6 Luna · negative prompt · soft negative
“I'd start with ChurnZero. It's usually the best balance of speed, usability, and core retention functionality for mid-market teams.” GPT-5.4 mini · paraphrase prompt · first choice
“ChurnZero is the common first choice for health scoring, real-time usage-based risk alerts and automated retention playbooks” Muse Glimmer 30B · paraphrase prompt · first choice
“ChurnZero – the strongest mid-market generalist. Repeatedly called out as the strongest mid-market option in the category.” Muse Glimmer 30B · direct prompt · first choice

What the models said about Gainsight Customer Success

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

“Gainsight is the most complex, most expensive platform, and one most likely to fail adoption tests at companies that aren't ready for it” Claude Haiku 4.5 · negative prompt · hard negative
“Avoid Gainsight if you have a team of fewer than 10 to 15 CSMs or lack a dedicated CS Operations resource.” Gemini 3.5 Flash · negative prompt · hard negative
“Platforms with Documented Concerns ### Gainsight ⚠️ ... Security Incident (Nov 2025)... High Cost” Kimi K2 · negative prompt · hard negative
“Gainsight — *The Enterprise Leader* ... The most mature, feature-rich platform on the market” DeepSeek V4 Flash · comparative prompt · first choice
“Gainsight: Leader in Gartner MQ and Forrester Wave; dominant in G2 reviews.” Grok 4.1 Fast · comparative prompt · first choice
“Most feature-rich platform on the market ... Gartner Magic Quadrant leader” MiniMax M2.5 · 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.