Power Bi Embedded is a tool that can be purchased on an hourly basis and can skip in the middle and continue and there is such a thing called a long-time commitment.
Power Bi Premium is a tool which has a monthly base subscription or annually based commitment, and we can't stop in the middle
Premium has more features like
- AI (Cognitive Services)
- Dataflows
- Paginated reports
If you want to learn more about Power BI, then read the Power BI Tutorial. Also, enroll in Power BI Training to become proficient in this BI tool.