Terms of Service
Last updated September 17, 2026
These terms set out the agreement between you and SYNTHIEN AI when you use the workspace. We have kept them short and in plain language.
Acceptance of these terms
By creating an account or using SYNTHIEN AI (the “Service”), you agree to these Terms of Service. If you use the Service on behalf of an organization, you accept these terms for that organization and confirm you are authorized to do so.
If you do not agree to these terms, do not use the Service.
Your account
You are responsible for the activity under your account and for keeping your credentials secure. Tell us promptly if you believe your account has been accessed without your permission.
You agree to provide accurate account information and to be old enough to form a binding contract in your jurisdiction.
Acceptable use
You may use the Service only for lawful purposes. Do not upload content you have no right to use, attempt to breach or overload the Service, reverse-engineer it, or use it to build a competing product.
You are responsible for the documents, notes, and questions you bring to the Service, and for confirming you hold the rights to process them.
Your content
You keep ownership of the documents, notes, sheets, and conversations you create or upload. You grant us a limited license to store and process them solely to operate the Service for you, for example to retrieve passages and produce cited answers.
We do not sell your content, and we do not use it to train third-party models without your consent.
Balance and payment
Runs are metered against a prepaid balance, which you buy in one-time packs and which the Service shows to you in US dollars. A run’s cost is based on the tokens its model uses, and you are charged for what a run actually uses, never the estimate.
Prices and rates may change, and we will give notice of changes before they take effect. Payments are handled by our payment processor; we never store your card details.
Refunds
All purchases are final. A purchased balance is non-refundable, whether you have used it or not, and it cannot be exchanged for cash.
Your balance does not expire, so anything unused stays in your workspace for later runs. Deleting your workspace deletes its balance.
If we charged you in error, for example twice for one purchase or for a pack that never reached your workspace, contact [email protected] and we will refund that charge in full. Nothing in this section limits rights you have under consumer law that cannot be excluded.
Availability and disclaimers
The Service is provided “as is.” We may add, change, or remove features, and we do not guarantee uninterrupted availability. Language models can be wrong or incomplete, so every answer carries its sources for you to verify, and you are responsible for checking outputs before relying on them.
Limitation of liability
To the fullest extent permitted by law, SYNTHIEN AI is not liable for indirect, incidental, or consequential damages, or for lost data or profits. Our total liability for any claim is limited to the amount you paid us for the Service in the twelve months before the claim.
Changes and contact
We may update these terms from time to time. If a change is material, we will make it prominent before it takes effect; continuing to use the Service after that means you accept the updated terms.
Questions about these terms? Contact [email protected].