Terms of Service

Last updated: March 2026

1. Acceptance of Terms

By accessing and using Lumen ("Service"), you accept and agree to be bound by the terms and provisions of this agreement. If you do not agree to these terms, please do not use our Service.


2. Description of Service

Lumen provides brand visibility analysis across AI search engines including ChatGPT, Claude, Gemini, and Perplexity. Our platform helps businesses understand and improve how their brand appears in AI-generated responses.


3. User Accounts

To access certain features, you must create an account. You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. Please notify us immediately of any unauthorized use.


4. Acceptable Use

You agree to use the Service only for lawful purposes and in accordance with these Terms. You agree not to:

  • Use the Service for any illegal or unauthorized purpose
  • Attempt to interfere with or disrupt the Service
  • Attempt to gain unauthorized access to any portion of the Service
  • Use automated means to access the Service without our permission
  • Resell or redistribute the Service without authorization

5. Subscription and Payments

Certain features require a paid subscription. By subscribing, you agree to pay all applicable fees. Subscriptions renew automatically unless cancelled before the renewal date. Refunds are provided in accordance with our refund policy.


6. Intellectual Property

The Service and its original content, features, and functionality are owned by Lumen and are protected by international copyright, trademark, patent, trade secret, and other intellectual property laws.


7. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, either express or implied. We do not guarantee that the Service will be uninterrupted, secure, or error-free. AI visibility scores and recommendations are provided for informational purposes only.


8. Limitation of Liability

In no event shall Lumen be liable for any indirect, incidental, special, consequential, or punitive damages resulting from your use of or inability to use the Service.


9. Changes to Terms

We reserve the right to modify these Terms at any time. We will notify users of any material changes by posting the new Terms on this page and updating the "Last updated" date.


10. Contact Us

If you have any questions about these Terms, reach out to us at legal@withlumen.ai