Slack vs Microsoft Teams: which one does AI recommend?

We asked ChatGPT, Gemini and Perplexity 10 questions buyers ask about team chat and messaging — 29 answers in total — and counted who got named. Slack is named in 24 of 29 answers (83%); Microsoft Teams in 20 (69%).

Slack

83%

named in 24 of 29 answers

ChatGPT: named in 89% of answers

Gemini: named in 70% of answers

Perplexity: named in 90% of answers

Microsoft Teams

69%

named in 20 of 29 answers

How they rank against everyone else

Slack

83%

Microsoft Teams

69%

Google Chat

52%

Discord

41%

Mattermost

28%

Pumble

24%

Chanty

17%

Element

17%

Where does your product land?

Same 10 questions, your product, about a minute. No account.

Counts are mentions in AI answers, not endorsements, measured 2026-09-20. Nobody pays to appear.