# Slack: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 24 judge labels across 6 categories by 13 of 14 models. Page: https://www.gane.ai/index/hr/vendors/slack

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Internal communications and intranet](https://www.gane.ai/index/hr/experience/internal-communications-and-intranet/index.md) | 9% | 6 | 8% | 12 |
| [Frontline employee apps](https://www.gane.ai/index/hr/experience/frontline-employee-apps/index.md) | 0% | 98 | 50% | 8 |
| [Employee engagement surveys](https://www.gane.ai/index/hr/experience/employee-engagement-surveys/index.md) | 0% | 71 | 0% | 1 |
| [Leave and absence management](https://www.gane.ai/index/hr/core/leave-and-absence-management/index.md) | 0% | 88 | 100% | 1 |
| [Mentoring software](https://www.gane.ai/index/hr/learning/mentoring-software/index.md) | 0% | 49 | 0% | 1 |
| [Org charts and org design](https://www.gane.ai/index/hr/planning/org-charts-and-org-design/index.md) | 0% | 57 | 0% | 1 |

## What the models said for it

- "For most mid-sized B2B companies without strong Microsoft commitments, Slack remains a solid choice due to its ease of use and comprehensive features." (Claude Haiku 4.5, Internal communications)
- "Using mixed tools (Google Workspace, Salesforce, etc.)? → Choose Slack (better flexibility, superior integrations)" (Kimi K2, Internal communications)
- "If your company is tech-forward and growth-focused, go with Slack + Notion." (Gemini 3.5 Flash, Internal communications)
- "otherwise, choose Slack for fast-moving, integration-heavy teams" (Perplexity Sonar, Internal communications)

## And against it

- "Unmaintained "Free" Chat Bots / Extensions (Slack or Teams Apps) ... Why to be cautious: Many free lightweight plugins lack enterprise-grade data encryption" (Gemini 3.5 Flash, Leave)
- "Slack and Microsoft Teams when the workforce lacks corporate email accounts or regular computer access. They may generate notification overload" (Perplexity Sonar, Frontline employee apps)
- "Also consider general tools like Slack or Microsoft Teams with frontline add-ons, but they often fall short on accessibility." (Grok 4.20, Frontline employee apps)
- "But I wouldn't choose a chat tool alone as the home for official company communications and lasting resources." (GPT-6 Luna, Internal communications)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 2 | 0 | 3 |
| GPT-5.4 mini | 0 | 1 | 0 | 0 | 1 |
| Gemini 3.5 Flash | 1 | 0 | 1 | 2 | 4 |
| Perplexity Sonar | 1 | 0 | 0 | 1 | 2 |
| Grok 4.20 | 0 | 1 | 0 | 1 | 2 |
| Mistral Small | 0 | 2 | 0 | 0 | 2 |
| DeepSeek V4 Flash | 1 | 0 | 1 | 0 | 2 |
| Llama 4 Maverick | 0 | 0 | 1 | 0 | 1 |
| Qwen 3.7 Flash | 0 | 1 | 1 | 0 | 2 |
| Kimi K2 | 1 | 0 | 0 | 0 | 1 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 1 | 0 | 1 |
| GPT-6 Luna | 0 | 0 | 0 | 1 | 1 |
| Muse Glimmer 30B | 0 | 1 | 0 | 1 | 2 |

## Sources returned with these answers

The sites and pages cited by the answers that named Slack, from 69 of the 89 answers that named it (only the models that return a source list).

### Domains cited

- leadchangegroup.com: 24
- softwareadvice.com: 20
- agilityportal.io: 18
- g2.com: 17
- guideflow.com: 15
- capterra.com: 14
- oak.com: 14
- slack.com: 14 (its own site)
- zdnet.com: 14
- joinblink.com: 12

### Pages cited

- https://zdnet.com/article/best-internal-communication-tools: 14
- https://softwareadvice.com/internal-communications: 9
- https://staffbase.com/blog/frontline-communication-tools: 9
- https://mangoapps.com/articles/frontline-communication-platforms-guide: 8
- https://operandio.com/frontline-worker-communication-platform: 8
- https://selectsoftwarereviews.com/buyer-guide/internal-communication-tools: 8
- https://oak.com/blog/best-employee-communication-apps-in-2026-and-how-to-choose-the-right-one: 7
- https://softwareadvice.co.uk/directory/4572/internal-communications/software: 7

## In its own words

What Slack's own pages state, read 2026-09-28. Stated by the vendor, not checked by the index.

- Positioning: AI Work Platform & Productivity Tools (https://slack.com/)
- For: teams (https://slack.com/)
- Price stated: Free $0USD free forever; Pro $8.75$4.38USD per user / month, when paying monthly, or $7.25 USD per user / month, when paying annually; Business+ $18$9USD per user / month, when paying monthly, or $15 USD per user / month, when paying annually; Enterprise+ $45USD per user / month, when paying annually (https://slack.com/pricing)
- Starting price: $0USD (https://slack.com/pricing)
- Free plan or trial: free forever (https://slack.com/pricing)
- Integrations claimed: 2600 (https://slack.com/)
- Customers named: Anthropic, Box, Notion, Rivian, Vercel, Anaplan, Rocket Companies, Snyk

## What it publishes

Every page slack.com exposes, read 2026-09-29: 9998 addresses. By kind, pages and the last 90 days:

- blog: 5566 pages, 0 in the last 90 days, latest undated
- case study: 1005 pages, 0 in the last 90 days, latest undated
- webinar or virtual event: 18 pages, 0 in the last 90 days, latest undated
- conference or event: 182 pages, 0 in the last 90 days, latest undated
- report or ebook: 8 pages, 0 in the last 90 days, latest undated
- comparison: 165 pages, 0 in the last 90 days, latest undated
- template or tool: 277 pages, 0 in the last 90 days, latest undated
- glossary or explainer: 84 pages, 0 in the last 90 days, latest undated
- podcast or video: 6 pages, 0 in the last 90 days, latest undated
- news or press: 1271 pages, 0 in the last 90 days, latest undated

## Record

- Method: https://www.gane.ai/index/hr/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/hr.