Do I have to sign a long term contract? January 24, 2019 14:25 Updated No. There are several options for you to use BigML's service: Completely free for tasks under 16 MB. Monthly, quarterly, or annual subscriptions. Private Deployments (Managed VPC, Self-Managed VPC, and On-Premises). Related articles Where can I find my username and my API Key? Can I make predictions offline? How much do they cost?