Tether Studio beta terms of use

Who we are

FastCrest is a sole-proprietor operation run by Romir Jain in San Francisco, California. "We" and "us" mean FastCrest. Reach us at team@fastcrest.com.

What the beta is

Tether Studio is a desktop app for recording robot demonstrations, preparing datasets, training and evaluating policies, and running them with a safety layer. The private beta is alpha quality. Features may be missing, change or break, and we may change, pause or end the beta at any time. It is free during the beta.

What you may do

• Install and use the beta on computers you control, to evaluate it and for your own work.
• Tell us what works and what does not.

You may not sell, rent, sublicense or redistribute the beta builds, reverse engineer them except where the law allows it regardless of this term, remove notices from them, or use them to run a competing hosted service. The Tether runtime that ships inside the app stays under its own licence, described at docs.fastcrest.com/about/license. Other third-party components keep their own licences.

Robots and safety

Studio is not a certified safety system. If you run it on a robot, you are responsible for what the robot does. Keep a hand on the physical power switch or e-stop, start slowly in a clear workspace, never leave a running policy unattended, and do not use the beta where a failure could injure someone without independent safeguards. The software e-stop is a second line of defence. Most of what we have verified was verified in simulation; see what is and is not verified on the beta page.

Your data

Your recordings, datasets and models stay on your computer unless you choose an action that sends them somewhere, such as pairing a computer, pushing to Hugging Face, or training on a cloud or SSH host. Our privacy page explains what we collect. If you send us feedback or a support bundle, we may use it to fix problems and improve the product. Review a bundle before sending it, and never send us secrets or keys.

Your own accounts and third-party services

Compute and storage you choose to use, such as your Modal account, a GPU host you control or Hugging Face, are separate services with their own terms and charges. You pay for them and you are responsible for following their terms. The same applies to models and datasets you download.

No warranty and limit of liability

The beta is provided as is, without warranty of any kind. We cannot promise it is free of defects or fit for a particular purpose. To the maximum extent permitted by law, FastCrest is not liable for indirect, incidental, special, consequential or punitive damages, or for damage to a robot, equipment, data or property, or for injury, arising from use of the beta. You operate it at your own risk.

Changes and ending

You can stop using the beta at any time by uninstalling it. We may update these terms; we will change the date at the top of this page. Using a later build after a change means you accept the updated terms.

Governing law

California, USA. If a dispute arises, please email us before any legal action and we will try to sort it out.