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Editorial comparison for operators. Ratings are sample data unless verified.
| Attribute | Slack | Microsoft Teams |
|---|---|---|
| Type | tool | tool |
| Summary | Slack AI is a workplace messaging platform with integrated AI features for remote teams. Search conversations, summarize threads, and automate workflows in one centralized hub. | Microsoft Teams is an enterprise chat and collaboration platform combining messaging, video conferencing, file sharing, and app integration within the Microsoft 365 ecosystem. |
| Pricing | freemium · See vendor site — sample data | freemium · See vendor site — sample data |
| Free trial | No / not listed | No / not listed |
| API | Yes | Yes |
| Open source | No | No |
| Editor rating | — | — |
| Categories | Communication, Team Collaboration, Workplace Tools | Communication & Collaboration, Team Chat, Video Conferencing |
| Key features | AI-powered search and thread summaries to find and digest past conversations · Channels, direct messages, and threaded replies for organized async communication · Workflow Builder for no-code automation of messages, notifications, and approvals · 2,000+ native integrations and API for custom apps and bots · Slack Connect for secure external collaboration with partners and vendors | Channel-based and direct messaging with persistent conversation history and search · Video and audio conferencing with screen sharing, recording, and live transcription (verify current transcription language support on vendor site) · Real-time co-authoring of Office documents (Word, Excel, PowerPoint) within chat context · Guest access enabling external users to join teams and channels without Microsoft 365 licenses · Bot framework and Power Automate integration for workflow automation and custom app development |
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