# Slack: how AI models rank it, October 2026

HR AI Recommendation Index, October 2026 Edition. Named in 43 judge labels across 7 categories by 14 of 14 models. Page: https://hr-ai-index.com/vendors/slack/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Internal communications and intranet | 9% | 5 | 18% | 17 |
| Frontline employee apps | 0% | 103 | 67% | 18 |
| Employee engagement surveys | 0% | 53 | 33% | 3 |
| Mentoring software | 0% | 34 | 0% | 2 |
| Internal talent marketplace | 0% | 50 | 0% | 1 |
| Recognition and rewards | 0% | 44 | 0% | 1 |
| Whistleblowing and investigations | 0% | 99 | 100% | 1 |

## What the models said for it

- "1. Slack (Salesforce) - Best for: Companies prioritizing real-time collaboration and ecosystem integrations" (MiniMax M2.5, Internal communications)
- "If you want a single recommendation, Slack is the safest default for a mid-sized B2B company" (Perplexity Sonar, Internal communications)
- "Use Microsoft Teams (if you are on M365) or Slack (if you are on Google/Hybrid)" (Gemini 3.5 Flash, Internal communications)
- "Slack is the most cited best overall pick for mid-sized teams." (Muse Glimmer 30B, Internal communications)

## And against it

- "If an organization encourages you to "speak up" using daily communication tools like Slack, Microsoft Teams, Outlook, or Google Workspace, do not use them for sensitive disclosures." (Gemini 3.5 Flash, Whistleblowing)
- "Slack due to being overwhelming, notification-heavy, and difficult to log into for pure frontline workers" (Llama 4 Maverick, Frontline employee apps)
- ""General tools to avoid for pure frontline: Slack/Teams ... low adoption among deskless workers"" (Muse Glimmer 30B, Frontline employee apps)
- "Avoid generic tools (like standard Slack or Microsoft Teams) for frontline-only staff" (Qwen 3.7 Flash, Frontline employee apps)

## Movement since September 2026

Floor: 13 points of share, measured on the calibration repeat. A larger change is movement; a smaller one is noise.

- Frontline employee apps: 2% to 0%, −2. Inside the floor by 11 points · rank 10 → 103 of 106.
- Internal communications and intranet: 8% to 9%, ±0. Inside the floor by 13 points · rank 5 of 86, unchanged.
- Employee engagement surveys: 0% to 0%, ±0. Inside the floor by 13 points · rank 63 → 53 of 58.
- Mentoring software: 0% to 0%, ±0. New · not ranked in September 2026 · rank 34 of 77.
- Internal talent marketplace: 0% to 0%, ±0. Inside the floor by 13 points · rank 36 → 50 of 102.
- Recognition and rewards: 0% to 0%, ±0. New · not ranked in September 2026 · rank 44 of 98.
- Whistleblowing and investigations: 0% to 0%, ±0. New · not ranked in September 2026 · rank 99 of 107.

## 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/)
- Certifications: SAML-based single sign-on, SCIM user management, EMM integration support, Native data loss prevention, Supports 12 SSO options including Okta, Google, and Azure, Supports guests, Supports Multi-SAML, 24/7 support
- 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://hr-ai-index.com/methodology/
- Raw judge labels and full responses: https://hr-ai-index.com/data/
- License: CC BY 4.0. Cite as HR AI Recommendation Index, October 2026 Edition, hr-ai-index.com.