Best Slack alternatives
Ranked by Share of Answer — how often each vendor is the AI's single first pick for Team Collaboration & Messaging, pooled across GPT-5.5, Claude, and Gemini. Updated weekly (2026-06-28).
When buyers ask AI for the best team collaboration & messaging, Slack is the first pick 28% of the time — strongest with Anthropic (44%). The alternative the models recommend most instead is Microsoft Teams at 15%. Here are the 12 alternatives ranked by what the models actually recommend.
Slack alternatives, ranked by AI
| # | Alternative | Share of Answer | Considered | Anthropic | OpenAI | |
|---|---|---|---|---|---|---|
| 1 | Microsoft Teams | | 45% | 23% | 21% | · |
| 2 | Notion | | 16% | 6% | 22% | · |
| 3 | Google Chat | | 10% | 13% | 9% | · |
| 4 | Discord | | 20% | 8% | 5% | · |
| 5 | Twist | | 2% | · | 3% | · |
| 6 | Mattermost | | 8% | 1% | · | · |
| 7 | Loom | | 4% | 1% | · | · |
| 8 | Google Workspace | | 1% | 1% | · | · |
| 9 | Clickup | | 5% | · | · | · |
| 10 | Monday COM | | 3% | · | · | · |
| 11 | Rocket.chat | | 2% | · | · | · |
| 12 | Basecamp | | 2% | · | · | · |
Per-model cells = that model's Share of Answer for the vendor. · = never first-picked by that model. How this is measured →
See where Slack and every alternative rank head-to-head, with confidence intervals and weekly movement, on the full Team Collaboration & Messaging leaderboard →