The STAC cloud labeling competition has come to a close!

Start building your training dataset today

GroundWork is free for anyone to get started with, but can also scale to support large machine learning teams.


Anyone can use GroundWork. The free tier gives you:

  • 10 projects
  • 10gb of data
  • 5 collaborators per project
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GroundWork can scale up with your machine learning team. Pro users get:

  • Unlimited projects
  • 100GB+ of data
  • 10+ collaborators per project
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Labeling as a service

We offer a fully managed annotation service with a team of dedicated GroundWork experts. We'll create training materials, set up and run your labeling campaigns, and deliver results quickly.

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