GTM AI Index
Index Vendors › Slack · September 2026 Edition
6 categories · Ranked

Slack

56Judge labels
1First choices
24Negative labels
11 of 12Models named it
6Categories
September 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-09-16.3, every buyer segment counted.
Best standing
2% in Community for small business buyers
Rank 16 of 74 in the mid-market standing
0 of 12 models made it the first choice on the direct prompt; 14% of its 7 labels there were negative.
By buyer segmentRead the same way at every buyer size.
In community · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Slack for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrant
Community platformsCustomer0%16 of 7414%7under 10 labels · led by Higher Logic Vanilla at 23%
In-app messaging and customer communicationsCustomer0%63 of 1130%2under 10 labels · led by Intercom at 20%
Conversational intelligence and call recordingSales0%88 of 93100%1under 10 labels · led by Avoma at 52%
Digital asset managementMarketing0%48 of 680%1under 10 labels · led by Canto at 34%
Knowledge base and self-serviceCustomer0%66 of 960%1under 10 labels · led by Notion at 18%
Lead routing and managementSales0%52 of 1040%1under 10 labels · led by LeadAngel at 32%

Movement

This is the first edition on this tier, so no move can be computed for Slack yet. The next is due October 1, 2026. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Slack across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.501001
GPT-5.4 mini00000
Gemini 3.5 Flash00000
Perplexity Sonar00011
Grok 4.1 Fast00101
Mistral Small00101
DeepSeek V4 Flash00101
Llama 4 Maverick01102
Qwen 3.7 Flash01214
Kimi K200101
GLM 4.7 FlashX01001
MiniMax M2.500000

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct4 labelsNone
Paraphrase6 labels1
Comparative9 labels3not counted in share
Budget-constrained14 labelsNone
Scale-constrained3 labelsNone
Negative20 labelsNone
First choiceAlternativeMentionNegative56 labels in all, every segment counted; 1 of the 4 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“many small companies use free Slack workspaces for community engagement. The free tier has limitations on message history, but it's a great starting point.” Claude Haiku 4.5 · Community · budget prompt · alternative
“Use the free Slack tier for internal communication, or upgrade to Pro at $7.25/user/month for advanced features.” GLM 4.7 FlashX · Community · budget prompt · alternative
“Slack: A communication platform that can be used for building communities” Llama 4 Maverick · Community · budget prompt · alternative
“you usually need a third-party middleware (like Slack integrations” Qwen 3.7 Flash · Lead routing · scale prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Slack mined private conversation data within its messaging platform to train AI models without proper consent.” Qwen 3.7 Flash · Conversation intel · negative prompt · hard negative
“useful for real-time chat, but they can be a poor fit when you need searchable knowledge, structured Q&A, moderation depth” Perplexity Sonar · Community · negative prompt · soft negative

Named alongside

The products named in the same answers as Slack, over the 56 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Slack was named but was not.
ProductSame answerTook the first choice insteadHead to head
Discord36 of 567Not in the top three
Circle28 of 569Not in the top three
Bettermode19 of 567Not in the top three
Discourse19 of 566Not in the top three
Mighty Networks19 of 561Not in the top three
Microsoft Teams18 of 560Not in the top three
Facebook Groups16 of 562Not in the top three
Skool12 of 560Not in the top three
Higher Logic Vanilla8 of 561Not in the top three
Mattermost8 of 561Not in the top three
A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Slack. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 7 of the 56 answers that named Slack and are not a share of its labels.

Domains cited

cxtoday.com5
guideflow.com5
bettermode.com4
higherlogic.com4
linodash.com4
feverbee.com3
gartner.com3
rajeshkumar.xyz3
reddit.com3
standingongiants.com3

Thirty-seven of the thirty-seven domain citations in answers naming Slack came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Names read as Slack

What the judge wrote, as written, with how often. The vendor table decides that these count as Slack; a claim can dispute any of them.
Slack (Free Tier) 1Slack Free 1

The company

Slack.
Website
slack.com
Headquarters
San Francisco, United States
Founded
2009
Ownership
Public, WORK on New York Stock Exchange

From Wikidata, fetched September 14, 2026. These describe the company, not the product's standing, and a claimed page can dispute any of them. · Wikidata · LinkedIn · Crunchbase

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Slack's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Slack, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at slack.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.