Version 2.0. Effective date: 11 September 2026.
These terms govern the Services supplied by ai-coustics GmbH, Rosenthaler Str. 38/4, 10178 Berlin, Germany, registered at Amtsgericht Charlottenburg under HRB 237856 B, VAT ID DE350703665 ("ai-coustics", "we", "us") to the customer accepting them ("you").
You accept these terms by expressly agreeing during registration or purchase, or by entering into an Order that incorporates them. We make these terms and the Model License available to read and save before acceptance.
The Services are offered to entrepreneurs acting in their commercial or independent professional capacity within § 14 of the German Civil Code (BGB), and legal persons under public law. By accepting, you confirm that you act in that capacity and have authority to bind the customer.
1. Definitions
Account means your registration at https://developers.ai-coustics.com.
SDK means our software development kit, including libraries, language bindings, tools and documentation.
Model Artifacts means our model weights, parameters, configuration files and related assets supplied under the ai-coustics Proprietary Model Artifact License (the Model License), version 2.0, at https://ai-coustics.com/legal/model-license.
Plugins means our integrations for third-party frameworks.
Key means an SDK license key or runtime credential.
Your Application means an application, device or service you develop or operate using the SDK or Model Artifacts.
Customer Content means content you or your users submit to or process using the Services. Output means the results produced from that content.
Plan means your subscription, with the prices, allowances, features and renewal terms agreed at purchase.
Order means a quote, order form or other agreement accepted by both parties for specified Services.
Services means our SDK, Model Artifacts, Plugins, developer portal, hosted features and documentation made available under this agreement.
2. Services
Your Plan, trial or Order determines the Services and usage rights available to you. Public availability of software or Model Artifacts does not itself grant a license.
The SDK processes audio on your infrastructure or device without sending that audio to us. Hosted features may transmit content for processing as described in our privacy notice. Licensing and usage reporting are governed by sections 4 and 10.
Services purchased through a partner are subject to your agreement with that partner and the rights it is authorized to grant. These terms apply directly to you only if incorporated into an agreement you accept.
3. Accounts and security
Keep your registration and billing details accurate and current. Account users must have the capacity and authority needed for their role and must be at least 16 years old.
Each login is personal to its holder. You may authorize employees and contractors to use the Services through supported access methods and are responsible for their compliance. Do not share login credentials.
Take reasonable measures to secure your Account and Keys. Keep secret Keys out of public repositories and distributed client code, and follow the documented authentication requirements. Promptly report suspected unauthorized access to support@ai-coustics.com, revoke affected Keys and cooperate to contain misuse.
You are responsible for authorized usage and losses caused by your culpable failure to meet these security obligations, excluding failures attributable to us.
4. Licensing and connectivity
Standard SDK licensing requires authentication and usage reporting. You must not interfere with these mechanisms to obtain unauthorized use or avoid agreed charges.
Offline use requires our express authorization and is subject to the duration, volume and reporting conditions of the applicable grant. Permission to deploy on your own infrastructure does not include an air-gapped license.
Revoking a Key may leave previously issued credentials valid until they expire. Technical ability to continue processing does not extend your license. You must stop using the affected Services when your authorization ends.
5. Plans and payment
Your purchase confirmation or Order sets out the subscription period, fees, currency, taxes, allowances, excess-usage rates and billing rules. Annual subscriptions are payable at the annual total agreed at purchase.
Unless otherwise agreed, subscription fees are payable in advance and excess usage in arrears. Plans renew for the same subscription period until cancelled. Included minutes reset monthly, including on annual Plans, on the agreed reset dates. Unused minutes do not roll over.
Usage fees are based on audio processing duration under the agreed measurement, aggregation and rounding rules. Excess usage is payable at the agreed rate even where processing continues without a warning or technical limit. We charge only agreed fees, explain disputed usage on reasonable request and correct billing errors.
Payment is due through the method agreed at purchase. You must provide accurate billing and tax information. Applicable taxes are added as required by law.
Trials are subject to the duration, use and limits stated when offered. A trial becomes a paid subscription only with your agreement. We may end a trial early for material misuse or legal or security necessity, with notice where practicable.
You may request Plan changes or cancel renewal through the billing portal or support@ai-coustics.com. Changes take effect on the date and with the proration confirmed before you accept them. Cancellation leaves access available until the end of the paid period unless you request earlier closure.
For overdue, undisputed amounts, we give notice and at least 14 days to pay before suspending access. We may terminate if payment remains outstanding at least 30 days after notice and we have warned you of termination. Suspension must be proportionate; accrued fees remain due.
Prices remain fixed during the committed subscription term. We may propose renewal prices with at least 30 days' email notice and an opportunity to cancel. Acceptance of amendments is governed by section 19.
Fees for voluntary cancellation and unused allowances are non-refundable, subject to sections 12, 14 and 15 and mandatory law. Raise invoice concerns promptly, preferably within 30 days, at support@ai-coustics.com. That period does not limit your legal rights. Undisputed amounts remain payable.
6. SDK license
For the duration and scope of your authorized trial, Plan or Order, we grant you a non-exclusive, worldwide license to install, copy and use the proprietary SDK to develop, test and operate Your Application.
You may distribute the unmodified SDK in object code as an integrated component of Your Application, including through application stores and device distribution channels. Recipients may use it only as part of Your Application within the agreed scope. Retain proprietary notices and references to the applicable versioned terms. Contractors and distribution providers may handle copies on your behalf under equivalent restrictions.
You may charge for Your Application and provide it as a hosted service. Reselling or white-labeling access to the Services, supplying the proprietary SDK as a standalone library, or granting third parties independent access to our technology requires a separate written commercial agreement with us. Distributing or operating Your Application under your own brand is permitted within the license granted above.
Open-source wrappers and third-party components remain governed by their own licenses. These terms do not restrict those rights or retroactively revoke rights granted under earlier binary licenses.
7. Model Artifacts
The identified Model License is incorporated into this agreement. Your Application qualifies as an Authorized Product under that license within the purposes, deployments, limits and term we have agreed.
Caching, bundling and distribution are permitted subject to the Model License's recipient restrictions and protective measures. Standalone redistribution and independent reuse are prohibited. Technical extractability alone is not a breach where you comply with those measures and do not intentionally facilitate extraction.
Sections 12 and 14 govern retirement, termination and existing installations.
8. Customer Content and data protection
You retain your rights in Your Application and Customer Content. We claim no ownership of Output, but do not warrant its legal protectability or freedom from third-party rights.
You are responsible for the rights, notices and lawful basis required to process Customer Content, including recording permissions, and for Your Application and decisions based on Output.
You authorize us to process content submitted to hosted features solely to supply those features and comply with law, including through disclosed providers. This permission excludes model training and unrelated uses.
Where we process personal data on your behalf, a data processing agreement (DPA) must be in place before processing begins. Request one at privacy@ai-coustics.com. The DPA governs processing instructions and contractual sub-processor obligations.
Our privacy notice at https://ai-coustics.com/legal/privacy-policy describes personal-data processing, roles and retention. Provider information is available at https://ai-coustics.com/legal/sub-processors.
9. Acceptable use
You must not:
use proprietary Model Artifacts to train, improve, distill or develop other models or competing products, except as permitted by the Model License or our written agreement;
use the proprietary SDK to create or train competing speech-enhancement models;
reverse engineer, decompile or disassemble proprietary materials, except as permitted by mandatory law;
bypass authentication, entitlements or usage reporting to obtain unauthorized use or avoid charges;
sell, lend or disclose secret Keys except to authorized personnel and providers who need them to operate Your Application;
infringe rights, conduct unlawful surveillance or otherwise use the Services unlawfully;
interfere with the Services, access another customer's data or test our systems without authorization; or
remove proprietary notices.
You may conduct internal benchmarking and performance comparisons of the Services within your license. You must not publish or otherwise make benchmark results or performance comparisons available outside your organization without our prior written consent. This restriction does not limit rights granted under applicable open-source licenses or mandatory law.
Report suspected vulnerabilities to support@ai-coustics.com. Do not submit confidential information or personal data to the documentation assistant unless expressly permitted for that feature.
10. Usage data and cookies
The SDK reports technical identifiers, environment information and processing-duration metrics for authentication, metering and diagnostics. These reports exclude local SDK audio. The privacy notice describes the data collected, purposes and retention.
You are responsible for optional metrics exports to endpoints you configure. We may use anonymous aggregate statistics to operate and improve the Services. Personal data remains subject to the disclosed purposes and data-protection requirements.
Our cookie policy at https://ai-coustics.com/legal/cookie-policy describes website storage and consent controls. Acceptance of these terms is separate from consent to optional analytics, session replay and marketing.
11. Intellectual property and feedback
We and our licensors retain rights in the materials we supply, except for the licenses expressly granted.
For feedback you voluntarily provide, you grant us a non-exclusive, worldwide, royalty-free license to use it to improve and supply our products. This excludes Customer Content, personal data and confidential information submitted for support.
You may accurately describe Your Application's use of our technology without implying endorsement. Neither party may use the other's logos or publish a customer endorsement without permission.
12. Changes to the Services
We may change the Services for maintenance, security, compliance or product development while maintaining the essential functionality agreed for a paid term.
Unless your Order specifies a different period, we give at least 45 days' notice by email to your designated account contact or by publishing a dated deprecation notice in the documentation before retiring a supported SDK version, model or credential format in a way that prevents authorized use. Shorter notice is permitted to the extent necessary for security, legal or unavoidable third-party constraints, with reasonable mitigation.
If a change materially reduces agreed paid functionality and we cannot provide a reasonably equivalent alternative, you may terminate the affected Services and receive a proportionate refund of prepaid fees for the unused period. Other remedies remain available.
Beta and preview features may change or end on the terms disclosed when offered. This does not reduce commitments for generally available paid Services or liability under section 16.
13. Availability and support
We provide the Services with reasonable care and the support benefits included in your Plan or Order. Guaranteed uptime, response times, on-call support and service credits apply only if expressly agreed.
We announce planned maintenance where reasonably practicable. Network or backend outages may affect authorization and reporting; supported operating requirements are described in the documentation.
14. Term and termination
This agreement continues while you have an Account or an active trial, Plan, Order or other license under it. An Account alone does not extend an expired entitlement.
You may cancel renewal under section 5 and request Account closure at support@ai-coustics.com. We will explain the consequences for active subscriptions before closure. Accrued payment obligations remain due.
Either party may terminate for material breach if the other fails to remedy it within 14 days after notice. Immediate termination is permitted where justified by law. Non-payment is governed by section 5.
We may suspend affected access where reasonably necessary to address a material breach, reasonably suspected fraud or abuse, unlawful activity or a concrete security risk. Suspension for non-payment is subject to section 5. Suspension must be limited in scope and duration. We will provide reasons and remedial steps where legally and practically possible, and restore access promptly when the grounds are resolved. Wrongful suspension does not entitle us to retain fees for Services withheld.
We may decline renewal of a paid Plan on at least 30 days' notice before the term ends. We may close an unpaid Account on 14 days' notice, subject to any unexpired trial or other license commitment. This clause grants no right to terminate a paid fixed term early without cause.
When a license ends, stop using and distributing the proprietary SDK and Model Artifacts and delete copies under your control, except for legally required archives and expressly permitted continuing uses.
You need not remotely delete or disable copies already lawfully installed on end-user devices. Continued operation, however, requires express permission covering both SDK and Model Artifacts and carries no implied right to backend authorization. The cure and termination rules here prevail over conflicting Model License provisions.
We pay any refunds due and handle deletion and retained records under the privacy notice, applicable DPA and law. Accrued rights and provisions intended to survive termination remain effective, including payment for past use, ownership, confidentiality, liability and dispute resolution.
15. Performance and remedies
We undertake to hold the rights needed to supply the licensed materials and to provide paid Services substantially in accordance with their agreed description when used as documented on supported platforms.
Report defects with sufficient information to investigate. We may repair, replace or provide an effective workaround within a reasonable time. If remediation fails or cannot reasonably be required, applicable rights to a price reduction, termination, refund or damages remain available. Section 16 governs damages.
Outputs may be inaccurate. Beyond agreed specifications, we do not warrant suitability for a particular recording, speaker, environment or regulatory use. Limitations for trials and preview features remain subject to section 16.
16. Liability
We are liable without limitation for intent and gross negligence, injury to life, body or health, fraudulent concealment of defects, liability under the German Product Liability Act, and express guarantees to the extent of the guarantee.
For Services provided free of charge during an expressly designated trial, liability for slight negligence is excluded, subject to the unlimited-liability and mandatory-law exceptions in this section. This exclusion applies only to events arising from the trial Services during the free-trial period; it does not extend to paid Services or change because you later subscribe.
For paid Services, we are liable for slight negligence involving breach of an essential contractual obligation necessary to achieve the contract's purpose and on which you ordinarily may rely. Liability is limited to damage typical of this agreement and foreseeable when it was concluded. Otherwise liability for slight negligence is excluded.
Except for the cases of unlimited liability set out in the first paragraph, our aggregate liability arising out of or in connection with this agreement will not exceed the fees paid by you for the Services during the 12 months preceding the event giving rise to the claim.
The cap does not limit obligations to supply the Services, remedy defects, reduce prices or pay refunds due under this agreement.
These limits apply regardless of the legal basis of the claim and also protect our personnel acting in their duties. They do not limit liability that cannot lawfully be restricted, including mandatory rights of data subjects.
17. Export compliance
Each party must comply with export-control and sanctions laws applicable to its performance. You must not supply or use the SDK or Model Artifacts for prohibited recipients, destinations or end uses, or without required authorizations.
18. Third-party claims
For third-party claims caused by your culpable breach of sections 8, 9 or 17, you must reimburse us for damages finally awarded or settled with your approval and reasonable necessary defense costs, to the extent attributable to your breach. You are not responsible for our own infringement, breach or fault.
We will notify you promptly, mitigate losses, cooperate and allow you a reasonable opportunity to participate in the defense. Neither party may settle on terms admitting fault or imposing obligations on the other without its consent, which must not be unreasonably withheld. Delayed notification reduces recovery to the extent it prejudices the defense. Rules on contributory fault apply.
19. Changes to these terms
We may propose amendments by email at least 30 days before their proposed effective date, explaining the changes and providing a copy you can save. Material amendments require your affirmative agreement unless another legally effective mechanism applies. Silence or continued use does not constitute affirmative agreement.
If you decline, the existing terms continue for the current committed term. Either party may decline renewal under the agreement. Changes required by law apply to the extent required. Updating a linked document does not itself amend contractual prices, licenses or liability.
20. Confidentiality
Each party must protect information marked confidential or reasonably understood to be confidential, use it only to perform this agreement and disclose it only to personnel, providers and advisers with a need to know and appropriate confidentiality duties.
This excludes information demonstrably already known lawfully, independently developed, lawfully received without restriction or public without breach. Legally required disclosures are permitted, with advance notice where lawful and reasonable steps to limit disclosure.
Confidentiality continues for three years after termination, and for trade secrets while legally protected. Data-protection obligations continue for their applicable duration.
21. Contract documents
Individually agreed terms prevail. Subject to that rule, conflicts are resolved in this order:
The applicable Order.
The applicable DPA for data-processing matters, including transfer clauses under their own priority rules.
Your accepted Plan confirmation for prices, quantities, features and subscription duration.
These terms.
The identified Model License and any binary license made applicable to the same agreement.
Product documentation.
Open-source and third-party licenses govern their own materials. Earlier license grants remain unaffected unless validly amended. Privacy and cookie notices and the public sub-processor list provide disclosures; contractual data-processing duties are governed by the DPA.
22. General
German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. Berlin courts have exclusive jurisdiction where legally permitted; otherwise statutory jurisdiction applies.
Neither party may transfer this agreement without consent, except to a successor to substantially all of the relevant business that assumes its obligations without materially impairing the other's position.
Unless this agreement specifies another notice method, we send contractual notices to your Account or Order email address. Send notices to support@ai-coustics.com or our postal address above, and privacy requests to privacy@ai-coustics.com.
Neither party is responsible for delay caused by events beyond its reasonable control that reasonable precautions could not prevent. The affected party must notify the other, mitigate the effects and resume performance promptly. Refunds, termination rights and statutory defenses remain available; payment for Services already supplied remains due.
This agreement and its applicable documents govern their subject matter. Customer standard purchasing terms apply only if accepted by us. Invalid or unincorporated standard terms are replaced by statutory provisions; the remainder continues subject to law.
The agreement is in English. Translations are for convenience unless otherwise agreed. Nothing in this agreement excludes mandatory statutory rights, including consumer rights where applicable.
