Terms & Conditions
Last updated: 24 June 2026
These Terms & Conditions ("Terms") govern your access to and use of Calliope, an AI-assisted writing service (the "Service") operated by Rhymenoceros s. r. o., with its registered office at Staré Grunty 3546/7A, 841 04 Bratislava, Slovakia, company ID (IČO) 56249314 (the "Operator", "we", "us", or "our").
By creating an account, accessing, or using the Service, you agree to be bound by these Terms. If you do not agree, you must not use the Service.
1. The Service
Calliope provides software tools that help you draft, edit, and refine written content with the assistance of artificial intelligence. The Service is provided on an "as is" and "as available" basis.
We may add, change, or remove features of the Service at any time. We will make reasonable efforts to notify you of material changes that affect how you use the Service.
2. Eligibility and accounts
You must be at least 16 years old, or the age of digital consent in your country, to use the Service. If you use the Service on behalf of an organisation, you confirm that you are authorised to bind that organisation to these Terms.
You are responsible for keeping your account credentials secure and for all activity that occurs under your account. Notify us promptly of any unauthorised use.
3. Your content
You retain all rights to the text, prompts, and other material you submit to the Service ("Your Content"). You grant us a limited licence to process Your Content solely to provide and improve the Service, as described in our Privacy Policy.
You are responsible for Your Content and for ensuring that you have the necessary rights to submit it and that it does not infringe the rights of others or violate any applicable law.
4. AI-generated output
The Service uses AI models to generate suggestions and text ("Output"). Output may be inaccurate, incomplete, or unintended, and similar Output may be generated for other users. You are responsible for reviewing and editing Output before relying on or publishing it.
Subject to your compliance with these Terms, we assign to you whatever rights we may have in the Output generated for you. We make no warranty that Output is original or free of third-party rights.
5. Acceptable use
You agree not to use the Service to create or distribute unlawful, harmful, infringing, deceptive, or abusive content; to attempt to reverse engineer or disrupt the Service; to circumvent usage limits; or to use the Service in violation of any applicable law.
We may suspend or terminate access that we reasonably believe violates these Terms.
6. Fees
Some features of the Service may be offered for a fee. Applicable prices and billing terms will be presented to you before you incur any charge. Rhymenoceros s. r. o. is not a VAT payer; prices are stated without VAT.
Unless required by law, fees are non-refundable. We may change pricing on a prospective basis with reasonable notice.
7. Intellectual property
The Service, including its software, design, and trademarks, is owned by the Operator or its licensors and is protected by intellectual property laws. These Terms do not grant you any rights in the Service other than the limited right to use it as permitted here.
8. Disclaimers and limitation of liability
To the maximum extent permitted by law, the Service is provided without warranties of any kind, whether express or implied. We do not warrant that the Service will be uninterrupted, error-free, or fit for a particular purpose.
To the maximum extent permitted by law, the Operator shall not be liable for any indirect, incidental, or consequential damages, or for any loss of data, profits, or goodwill arising from your use of the Service. Nothing in these Terms limits liability that cannot be limited under applicable law.
9. Termination
You may stop using the Service and close your account at any time. We may suspend or terminate your access if you breach these Terms or if we discontinue the Service. Provisions that by their nature should survive termination will survive.
10. Governing law
These Terms are governed by the laws of the Slovak Republic, without regard to its conflict-of-law rules. The courts of the Slovak Republic have jurisdiction over any dispute, subject to any mandatory consumer protection rights you may have in your country of residence.
11. Changes to these Terms
We may update these Terms from time to time. We will post the updated version with a new "Last updated" date and, where required, notify you. Continued use of the Service after changes take effect constitutes acceptance of the revised Terms.
12. Contact
Questions about these Terms can be sent to hello@writecalliope.ink, or by post to Rhymenoceros s. r. o., Staré Grunty 3546/7A, 841 04 Bratislava, Slovakia.