Have created a model in Watson Knowledge Studio and deploying it in NLU service of Bluemix. Recently I get the below error while deploying. "This operation cannot be completed because the model size exceeds the subscription storage size 5 GB." What could be the reason ??
As Bill wrote, WKS has small storage limitation for Free plan and creating snapshots of Machine Learning models might hit the limitation.
I believe you have many snapshots of ML model. Could you please delete unnecessary snapshots from your projects? If you have multiple projects on your WKS tenant (server instance), please consider the total number of snapshots across the projects.