FastCrest
Cupel offers preview enrichment for robotics video. Tether Studio is a desktop app in private beta for recording demonstrations and developing robot policies.
One helps you build the right dataset. The other helps you build a policy you understand and can improve.
Cupel: Public preview
Preview enrichment for egocentric and robotics video.
Sign up to try preview video enrichment. Review inferred outputs before using them for training; accuracy and full-video coverage are not independently established.
Tether Studio: Private beta
The visual workspace for Tether.
Record demonstrations, check datasets, and develop policies using your own compute. The beta page lists supported downloads and the checks completed so far; real-robot operation remains unverified.
FastCrest was founded by Romir Jain and Arnav Gupta. We build Cupel and Tether Studio for people developing robots and the policies that control them.
Co-founder
Co-founder
No. Cupel and Tether Studio are separate products. Use Cupel for your data workflow, or Tether Studio for policy development. Neither requires the other.
You can start with existing data in Cupel or supported local simulation workflows in Tether Studio. Checking a real deployment eventually requires evidence from the intended hardware.
Sign up for Cupel or download the Tether Studio private beta. For help choosing, contact our team with your data, robot, and task.
Tell us about your data, policy, and the task you need it to perform.
Talk to the foundersFastCrest builds Cupel and Tether Studio. Software for robotics data and policy development.