gbXML is the universal schema to transfer models between various analysis engines and software. For more information on gbXML check out this article.
To export a gbXML file from OpenStudio follow these simple steps:
Open the .osm file in OpenStudio
[optional] view the model by going to the geometry viewer (6th tab)
Navigate to File -> Export -> gbXML
enter the desired file name and location and hit save!
Your gbXML file is now ready to be imported into any building simulation platform!
For more information on energy modeling interoperability please see this article.
For a full list of software that can import a gbXML file see here.
Export options from cove.tool
From loadmodeling.tool exporting the Building Analysis Model from the settings page will include a gbXML file.
From analysis.tool exporting the OSM model from the Baseline Energy Page will include a gbXML file.