The SQL Server 2016 Standard Edition include the Tabular model.
It's Tabular model can use 16 GB memory per instance.
At June 1st 2016, GA of SQL Server 2016.
I will verify Live connection between Power BI Desktop and SQL Server 2016 Standard Edition Tabular model.
There are a "Tabular" feature differences of SQL Server 2016 Enterprise Edition vs. Standard Edition.