Legal
Terms of Service
These Terms of Service ("Terms") govern your access to and use of Chora and any related websites, APIs, and services (together, the "Service") operated by Sarsa Formation OÜ, a private limited company registered in Estonia, registry code 17290516, registered office Lõõtsa tn 1a, 11415 Tallinn, Estonia ("Sarsa Formation", "we", "us"). By creating an account or using the Service, you agree to these Terms.
1. The Service
Chora is a coherence substrate for AI systems, offered on an early-access basis and provided on an "as available" footing while in development. Features may change, and access is currently by invitation. Chora couples to third-party AI models, including Anthropic's Claude, to deliver its functionality.
2. Eligibility & accounts
You must be at least 18 years old and able to form a binding contract. You are responsible for the activity under your account, for keeping your credentials secure, and for the accuracy of the information you provide. You must not share access in violation of these Terms.
If you use the Service on behalf of a company or other legal entity, you confirm you are authorised to bind it, and "you" includes that entity. Provisions of these Terms written for consumers apply only where you act as one.
3. Plans, billing & payment
The Service is offered on the plans presented to you at checkout. A plan is one or both of the following.
Prepaid credits
- Usage-based. You purchase a balance of credits and consume them as you use the Service. Credits do not recur and are not charged again automatically.
- Purchased credits do not expire while your account remains open. Promotional or trial credits may carry an expiry, stated when they are granted.
- Credits are for use with the Service, have no cash value except as required by law, and are subject to our Refund Policy.
Subscriptions
- A subscription is a recurring fee charged in advance for each billing period (monthly or annual, as you select), and includes the usage allowance stated at checkout. Usage beyond the allowance is billed as stated at checkout.
- Subscriptions renew automatically at the end of each billing period, at the then-current price, until cancelled. We will notify you before any price change takes effect, and we will give advance notice of a renewal wherever mandatory law requires it.
- You may cancel at any time, from your account or by emailing us. Cancellation takes effect at the end of the current paid period; you keep access until then. We do not pro-rate part periods except where the Refund Policy or mandatory law says otherwise.
Both
- Payments are processed by Stripe. By purchasing, you also agree to Stripe's applicable terms. We do not store full card details.
- Prices, allowances, and the rate at which credits are consumed are shown before purchase and may be updated prospectively.
- Sarsa Formation OÜ is not currently VAT-registered, so no VAT is charged on our invoices. If we become liable to register for VAT, we will charge it from that point and show it at checkout. Any other taxes are your responsibility where applicable.
4. Acceptable use
You agree not to use the Service to:
- break the law, infringe others' rights, or violate the usage policies of the underlying model providers (including Anthropic's Usage Policy);
- attempt to disrupt, reverse-engineer, or gain unauthorised access to the Service or its infrastructure;
- generate content that is unlawful, or that we are prohibited from enabling under applicable law or our providers' terms.
5. Your content
You retain your rights in the inputs you submit and the outputs you receive, to the extent such rights exist. You grant us a limited licence to process your content solely to operate and improve the Service, as described in our Privacy Policy. We treat your inputs and outputs as confidential and do not sell them. You are responsible for your use of any outputs.
6. Intellectual property
The Service, including Chora and the Sarsa Formation marks, is owned by us and our licensors. Nothing in these Terms transfers ownership of the Service to you.
7. Disclaimers
The Service is provided "as is" and "as available", without warranties of any kind to the fullest extent permitted by law. AI systems can produce inaccurate or unexpected output; you must not rely on the Service as a substitute for professional advice. Nothing in these Terms excludes liability that cannot be excluded under mandatory law, including mandatory EU consumer protections.
If you are an EU consumer, digital-content and digital-services law gives you statutory remedies where a service does not conform to the contract. Nothing in these Terms limits those remedies.
8. Limitation of liability
To the fullest extent permitted by law, we are not liable for indirect or consequential loss, and our aggregate liability arising out of the Service is limited to the amounts you paid to us in the twelve (12) months before the event giving rise to the claim.
Nothing in these Terms limits or excludes our liability for intentional or grossly negligent breach, for death or personal injury caused by our negligence, or for anything else that cannot be limited under mandatory law — including the mandatory consumer protections of your country of residence.
9. Indemnity (business customers)
If you use the Service in the course of business, you will indemnify us against third-party claims, and reasonable related costs, arising from your content or from your use of the Service in breach of these Terms. This section does not apply to consumers.
10. Suspension & termination
You may stop using the Service at any time. We may suspend or terminate access if you breach these Terms or where required to protect the Service or comply with law. On termination, any unused credits and any active subscription are handled per the Refund Policy.
11. Changes
We may update these Terms; material changes will be notified by a reasonable means. Continued use after changes take effect constitutes acceptance.
12. Governing law & disputes
These Terms are governed by the laws of Estonia. If you are a consumer, this choice does not deprive you of the protection of mandatory provisions of the law of your country of residence. Disputes are subject to the competent courts of Estonia, subject to any mandatory jurisdiction rules that apply to consumers.
If you are a consumer, please bring a complaint to us first: email harri@sarsa.art and we will reply within 15 days. If we cannot resolve it between us, you may then turn to the Consumer Disputes Committee (tarbijavaidluste komisjon) at the Estonian Consumer Protection and Technical Regulatory Authority (ttja.ee). It resolves consumer disputes free of charge for both sides, normally within 90 days.
13. General
If a provision of these Terms is found unenforceable, the rest remain in effect and the provision applies to the maximum extent permitted. These Terms, together with the policies they link to, are the entire agreement between us about the Service. You may not assign these Terms without our consent; we may assign them to an affiliate or as part of a merger, acquisition, or transfer of the business — including a successor entity to Sarsa Formation OÜ. Neither party is liable for delay or failure caused by events beyond its reasonable control. Not enforcing a provision is not a waiver of it.
14. Contact
Sarsa Formation OÜ · harri@sarsa.art · see the Contact page for entity details.