FastCrest
We are building Cupel for robotics data and Tether Studio as the visual workspace for Tether. Prepare the data robots learn from, then develop, run, and improve their policies.
One helps you build the right dataset. The other helps you build a policy you understand and can improve.
Turn demonstrations into data robots can learn from.
Start with robot recordings, human video, spatial data, or handheld demonstrations. Cupel's goal is to prepare a dataset for your robot, task, and training setup, measure whether it helps, and identify what data you need next.
The visual workspace for Tether.
Bring Tether’s model preparation, serving, optimization, inspection, improvement, and release workflows into one interface. Follow a policy through an experiment with its settings and evidence in view.
A failed task can start with the data, the policy, or the system running it. We want developers to follow that problem through to a tested improvement.
A recording may be useful for one task and insufficient for another. Preparation should account for the intended robot, available signals, and the training objective.
Inspect the source of a finding, preserve the baseline, and compare changes under matching conditions. Missing evidence should remain visible.
Choose whether to repair data, collect examples, change a setting, train a candidate, or run another evaluation. Keep the outputs available for the next experiment.
Two example journeys explain the product direction through a concrete task.
FastCrest was founded by Romir Jain and Arnav Gupta. We are building 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.
Email team@fastcrest.com with the data or policy you have, the robot or task you are targeting, and the problem you want to solve.
Tell us about your data, policy, and the task you need it to perform.
Talk to the founders
FastCrest builds Cupel and Tether Studio. Software for robotics data and policy development.