Power BI Pro is an individual user license that allows access to all content and capabilities in the Power BI service. You can even share content and collaborate with other Pro users. Only Pro users can publish content to workspaces, share dashboards, and subscribe to dashboards and reports.
Power BI Premium provides dedicated capacity to deliver more consistent performance. It also supports larger data volumes in Power BI. For individual users, Premium enables widespread distribution of content by Pro users and it doesn't require per-user Pro licenses for recipients viewing the content. This means that consumers can collaborate with colleagues and view and interact with dashboards, reports, and apps that have been shared with them.