DABYTE INDEX · HEAD-TO-HEAD
Notion vs Slack: which is more visible in AI answers?
Answer. Slack is more visible — 52.0% share of answer against 27.2% for Notion, a gap of 24.8 points in the DABYTE AI Visibility Index (2026-09-07). Notion ranks #4, Slack ranks #1 of 20 tracked brands.
Measured · panel of 16 prompts · methodology
Side by side
| Engine | Notion | Slack |
|---|---|---|
| ChatGPT | 37.5% | 50.0% |
| Perplexity | 18.8% | 50.0% |
| Gemini | 25.0% | 56.2% |
| Overall | 27.2% | 52.0% |
| Rank | #4 | #1 |
| Quadrant | Visibility gap | Leaders |
Visibility is not market share: it measures whether an engine names the brand when a buyer asks the category question, nothing more.