Terms of Service
Terms of Service for Interstitial AI
Last updated: March 24, 2026
1. Introduction
These Terms of Service (“Terms”) govern the use of the web application, Revit plugin, and related online services (“Service”) offered by Interstitial AI GbR (“Interstitial AI”, “we”, “us”), a company incorporated under the laws of Germany and based in Munich. By accessing or using the Service, you (“User”, “you”) agree to be bound by these Terms. If you do not agree, you must not use the Service.
This document incorporates EU consumer rights and obligations under German law, GDPR, and the Digital Services Act (DDG).
2. Scope and Eligibility
The Service is available to individuals 18 years and older. If you use the Service on behalf of a legal entity, you represent and warrant that you are authorized to bind that entity to these Terms.
3. Description of Service
Interstitial AI provides AI-powered architectural visualization tools via a web application at https://app.interstitial-ai.com and an optional Revit plugin for Windows. Services include AI image generation, video generation, upscaling, and design visualization tools through a credit-based subscription model.
4. Account Registration
Users must register to access core features. You are responsible for maintaining the confidentiality of your credentials and for all activity under your account.
5. Subscription, Payments, and Refunds
5.1 Subscription Plans
We offer a free tier (Blueprint) and paid monthly subscriptions (Base, Pro, Max) with tiered features and credit budgets. All fees for paid plans are payable in advance.
5.2 Credit System
Each paid plan includes a monthly credit budget. Credits are deducted based on the model and resolution used for each generation. Unused credits do not roll over to the next billing cycle. Credits are replenished at the start of each new billing period.
5.3 Pay-As-You-Go
Paid plans support optional pay-as-you-go usage beyond the monthly credit budget. Overage charges are invoiced at the end of each billing period. Users can set a spending limit to control overage costs.
5.4 Payment Processor
Payments are processed via Stripe. Users are responsible for keeping payment details accurate. See our Privacy Policy for details on payment data processing.
5.5 Taxes
Interstitial AI GbR operates under the small business regulation (Kleinunternehmerregelung) pursuant to §19 UStG. All prices are stated as net prices and no VAT is charged. Users outside Germany may be responsible for self-assessing VAT or import taxes where applicable.
5.6 Right of Withdrawal (EU Consumers)
As an EU consumer, you have the right to withdraw from your subscription within 14 days of concluding the contract, without giving any reason.
However, this right expires once you:
- Begin using the Service during the withdrawal period and
- Explicitly consent to immediate use and acknowledge the loss of the withdrawal right upon first use.
To exercise your right before activation, email us at info@interstitial-ai.com with a clear withdrawal request. A model form is available on request.
5.7 Refunds and Cancellations
- Monthly Plans: No refund after billing; cancellation effective at end of billing cycle. Your plan benefits and remaining credits stay active until then.
- Upgrades: Pro-rated and take effect immediately.
- Downgrades: Applied at next billing cycle.
6. Ownership and Rights to Content
6.1 User Content
You retain rights to any input or data you provide. You grant us a non-exclusive license to use this input to generate requested outputs and deliver the Service.
6.2 Output Ownership
Subject to applicable copyright laws, you own the output generated from your inputs. However, Interstitial AI does not guarantee legal ownership of AI-generated works under all jurisdictions. The legal status of AI-generated content varies by country.
6.3 No Training on User Data
We do not use your inputs, project data, or generated outputs to train AI models.
6.4 Attribution
When publishing content generated by Interstitial AI, attribution (e.g., “Created with Interstitial AI”) is appreciated where reasonable but not required for paid plans.
6.5 Publication and Marketing Use
Content generated under free accounts (Blueprint) may be used in Interstitial AI’s marketing or social media, with prior notification. Paid plan content is private unless you opt-in.
7. Acceptable Use
You agree not to:
- Reverse-engineer or tamper with the Service.
- Use the Service for illegal purposes or to infringe third-party rights.
- Upload unlawful, harmful, or offensive content.
- Create a competing service using our outputs.
- Circumvent security, rate limits, or licensing restrictions.
8. Third-Party AI Models and Licenses
Our Service uses third-party AI models for image generation, video generation, and upscaling. These include models from various providers, each subject to their own license terms. By using the Service, you agree to comply with the applicable license terms of the underlying models. We may update, add, or remove models at any time.
9. Privacy and Data Protection
We comply with the General Data Protection Regulation (GDPR), the German Federal Data Protection Act (BDSG), and the Telecommunications Digital Services Data Protection Act (TDDDG).
- Data is processed primarily within the EU. Where US-based services are used, appropriate safeguards (EU-US Data Privacy Framework, Standard Contractual Clauses) are in place.
- We maintain appropriate technical and organizational measures to safeguard your data.
- We do not sell or share your personal data for advertising purposes.
- For full details, see our Privacy Policy.
9.1 Data Processing Agreement (DPA)
For business customers, we offer a GDPR-compliant Data Processing Agreement on request.
10. Service Availability and Limitations
We aim to maintain high availability but offer no uptime guarantees. Temporary disruptions may occur for maintenance or due to technical issues.
We reserve the right to:
- Modify features or available models.
- Impose fair use limits.
- Suspend or terminate accounts that breach these Terms.
11. Export Compliance
You agree not to use the Service in violation of applicable export or trade restrictions, including EU, US, or UN sanctions.
12. Limitation of Liability
To the maximum extent allowed by law:
- We provide the Service “as-is” with no warranties regarding accuracy, availability, or fitness for a particular purpose.
- We are not liable for indirect, incidental, or consequential damages.
- Our total liability shall not exceed the amount paid by you in the past 12 months, or €100, whichever is greater.
These limitations do not apply to liability for intent or gross negligence, or to mandatory liability under German law (e.g., product liability, injury to life, body, or health).
13. Indemnification
You agree to indemnify and hold harmless Interstitial AI from any claims, liabilities, or damages arising from your use of the Service or your breach of these Terms.
14. Termination
We may terminate or suspend your account if you breach these Terms. Upon termination, all rights granted to you cease immediately.
You may cancel your subscription at any time via your account settings or by emailing info@interstitial-ai.com.
15. Jurisdiction and Governing Law
These Terms are governed by the laws of the Federal Republic of Germany.
- For consumers in the EU: Any disputes may be resolved in the courts of your country of residence.
- For business users: Exclusive jurisdiction is Munich, Germany.
16. Changes to the Terms
We may update these Terms. Material changes will be communicated 30 days in advance via email or a notice on our website. Continued use of the Service after changes take effect constitutes acceptance.
17. Severability
If any provision is held invalid, the remaining provisions remain in effect.
18. Contact
Interstitial AI GbR
Fraunhoferstrasse 39, 80469 Munich
Email: info@interstitial-ai.com