Can someone explain what are the costs for PowerBI Cloud?
I know this site : https://powerbi.microsoft.com/en-us/pricing/
* Power BI Free : 1GB per user per month (and 250 per data model) : 0 dollar
* Power BI Pro : 10GB per user per month (and 250 per data model) : 10 dollar
So this would mean if i have 25 users, it would cost 25 x 10 dollar = 250 dollar per month.
are there any additional costs? for O365 for example?
Proud to be a Datanaut!
Basic Azure AD is free with Power BI. If you just want to get Power BI Pro licenses, the $250 / month in your example is the total cost. As @Seth_C_Bauer said, some components are integrations with O365, and anything that depends on O365 will require an O365 license.