Fight Klub

Terms of Use

Last updated: November 11, 2026

The short version. Fight Klub shows you answers written by AI models from other companies, and an AI Referee’s opinion of them. AI can be wrong, so check anything that matters. Use the Service lawfully, be an adult, and cancel a subscription in the store you bought it from. The full terms below are what count.

1. Agreement

These terms are an agreement between you and Fight Klub LLC, 1212 New York Ave NW, Suite 1000, Washington, DC 20005, United States (“Fight Klub”, “we”, “us”). They cover the Fight Klub apps for iPhone and Android, the Fight Klub web app and this website (the “Service”). By creating an account or using the Service you accept them. If you do not accept them, do not use the Service. Our Privacy Policy explains how we handle your information.

2. Who can use Fight Klub

You must be at least 18 years old. You are responsible for your account, for keeping your password private, and for what happens under your account. Give us an email address you can be reached at, and tell us at support@fightklub.ai if you think someone else has used your account.

3. The Service

Fight Klub sends a prompt you write to one or more AI models made by other companies, shows you their answers side by side, and offers a verdict from an AI Referee. We may add, change or remove fighters, fight types and features, and we may set limits on how many fights or rounds you can run. The Service depends on the AI providers; if one of them is slow, unavailable or changes its model, a fight may fail or the answers may differ.

4. AI-generated content

  • Answers can be wrong. AI models make mistakes, invent facts and can be out of date. Check anything important against a reliable source.
  • Not professional advice. Nothing in the Service is medical, legal, financial or other professional advice. Do not rely on it in place of a qualified professional.
  • The Referee gives an opinion. A verdict is the AI Referee’s judgment of the answers to one prompt. It is not a rating of any company or product, and a different prompt may produce a different winner.
  • Answers are not our views. The models’ output does not represent the views of Fight Klub or of the companies that make the models.
  • Reporting. We filter for objectionable output, but filters are imperfect. You can report any answer from inside the app or by email to support@fightklub.ai. We review reports and act on them, which can include blocking the content and suspending accounts that deliberately produce it.

5. Rules of the ring

You agree not to use the Service to:

  • break the law, or help anyone else to;
  • create content that sexualizes minors, threatens or harasses people, promotes violence or hatred against a group, or helps cause serious harm;
  • submit other people’s private information, or content you have no right to use;
  • deceive people about whether content was written by AI, where that deception causes harm;
  • get around usage limits, share or resell access, scrape the Service, or use it through automated means we have not approved;
  • probe, attack or reverse-engineer the Service, or try to extract our keys or the providers’ models;
  • break the usage policies of the AI providers whose models answer your prompts.

We may remove content, limit use, or suspend or close an account that breaks these rules.

6. Your content

Your prompts are yours. As between you and Fight Klub, and as far as the law and the AI providers’ terms allow, the answers generated for your prompts are yours to use. Other people may receive the same or similar answers; you have no exclusive right to them.

You give Fight Klub a worldwide, royalty-free licence to host, store, transmit and display your prompts and the answers, only so far as needed to run the Service for you, keep it safe, and handle reports. That licence ends when the content is deleted from our systems.

7. Subscriptions and payment

  • Free use and paid plans. Some use is free within limits. A paid subscription gives a larger allowance. The price, the billing period and what each plan includes are shown before you buy.
  • Where you buy. In the iPhone app, subscriptions are sold through Apple’s in-app purchase. In the Android app, through Google Play Billing. On the web, through Stripe. One subscription covers the same account on phone and web.
  • Automatic renewal. A subscription renews automatically at the end of each period, at the price then current, until you cancel. Cancel at least 24 hours before the period ends to avoid the next charge.
  • How to cancel. Cancel in the place you bought: your Apple account’s Subscriptions, Google Play’s Subscriptions, or your Fight Klub account page on the web. Deleting the app or your account does not cancel a store subscription. Steps are on the support page.
  • Refunds. Purchases made through Apple or Google are refunded by them under their policies; we cannot refund those ourselves. For a purchase made on the web, write to support@fightklub.ai. Except where the law says otherwise, payments for a period already started are not refunded.
  • Price changes. If we change a price, we will tell you beforehand, and the change applies from your next renewal.
  • Allowances. Each plan has a monthly allowance of fights. Unused allowance does not carry over.

8. Third-party models and marks

The fighters are AI models operated by other companies. Claude is a trademark of Anthropic, PBC. GPT is a trademark of OpenAI. Gemini is a trademark of Google LLC. Grok is a trademark of X.AI Corp. These names are used only to identify the models. Fight Klub is independent: it is not affiliated with, sponsored by or endorsed by any of these companies.

9. Our rights

Fight Klub LLC owns the Service, including the software, the design, the Fight Klub name and logo. We give you a personal, non-exclusive, non-transferable licence to use the Service under these terms. If you send us feedback, we may use it without owing you anything.

10. Ending these terms

You can stop using the Service and delete your account at any time, from inside the app. We may suspend or close your account if you break these terms, if the law requires it, or if we stop offering the Service; if we close a paid account for a reason other than your breach, we will refund the unused part of the current period where we took the payment directly. Sections 4, 6, 8, 9, 11, 12 and 13 continue after these terms end.

11. Disclaimers

The Service is provided “as is” and “as available”. To the fullest extent the law allows, Fight Klub disclaims all warranties, express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not promise that the Service will be uninterrupted or error-free, or that any answer or verdict is accurate, complete or suitable for your purpose.

12. Limit of liability

To the fullest extent the law allows, Fight Klub and its owners, officers, staff and suppliers are not liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, data or goodwill, arising from the Service or these terms. Our total liability for any claim is limited to the greater of the amount you paid us in the 12 months before the claim arose or US $50. Nothing in these terms limits liability that the law does not allow to be limited, and consumers keep the rights the law of their country gives them.

13. Governing law

These terms are governed by the laws of the District of Columbia, United States, without regard to its conflict-of-law rules. Disputes will be brought in the state or federal courts located in the District of Columbia, and you and Fight Klub accept the jurisdiction of those courts; if you are a consumer, this does not take away any right you have to bring a claim where you live. If any part of these terms is found unenforceable, the rest stays in force. These terms, with the Privacy Policy, are the whole agreement between you and us about the Service.

14. App Store terms

If you got the app from Apple’s App Store, these also apply:

  • These terms are between you and Fight Klub LLC only, not Apple. Fight Klub, not Apple, is responsible for the app and its content.
  • Your licence is limited to using the app on Apple devices you own or control, as the App Store’s Usage Rules allow.
  • Apple has no obligation to provide maintenance or support for the app.
  • If the app fails to meet a warranty that applies, you may tell Apple, and Apple will refund the purchase price, if any. To the fullest extent the law allows, Apple has no other warranty obligation for the app.
  • Fight Klub, not Apple, is responsible for any claim about the app, including product liability, legal or regulatory compliance, and consumer protection or privacy law.
  • If a third party claims the app infringes its intellectual property, Fight Klub, not Apple, is responsible for the investigation, defence and settlement of that claim.
  • You confirm that you are not in a country under a US Government embargo or designated as a “terrorist supporting” country, and that you are not on any US Government list of prohibited or restricted parties.
  • Apple and its subsidiaries are third-party beneficiaries of these terms, and may enforce them against you.

If you got the app from Google Play, your purchase is also subject to Google Play’s terms.

15. Changes

We may update these terms. We will post the new version here and change the date at the top, and for a significant change we will tell you in the app or by email before it takes effect. If you keep using the Service after a change takes effect, you accept the new terms.

16. Contact

Fight Klub LLC
1212 New York Ave NW, Suite 1000
Washington, DC 20005, United States
support@fightklub.ai