# LongCat.AI Algorithm and Model Filing Information Statement

Dear User, welcome to LongCat.AI (hereinafter referred to as “we”)!

Before you officially use our services, we would like to clearly introduce the models, algorithms, application scenarios, and filing status used in LongCat.AI’s products and services through this "LongCat.AI Algorithm and Model Filing Information Statement". Please carefully read this statement before using LongCat.AI so that you can better understand the products and services you are about to use.

# I. Large Language Models

The large language models used by LongCat.AI are as follows:

(1) Model Name: Meituan Large Model "TongHui" (now renamed "LongCat" Large Model)

  1. Filing Number: Beijing-TongHui-20231016

  2. Filing Entity: Beijing Sankuai Technology Co., Ltd.

  3. Application Scenarios: Applied to AI conversation, text-to-text generation, search, and other functions within LongCat.AI.

(2) Model Name: LongCatVL

  1. Filing Number: Shanghai-LongCatVL-202511240094

  2. Filing Entity: Shanghai Hanshu Technology Co., Ltd.

  3. Application Scenarios: Applied to image understanding, video understanding, attachment understanding, and other functions within LongCat.AI.

(3) Model Name: LongCatS

  1. Filing Number: Shanghai-LongCatS-202511240095

  2. Filing Entity: Shanghai Hanshu Technology Co., Ltd.

  3. Application Scenarios: Applied to speech understanding, speech generation, and other functions within LongCat.AI.

# II. Model Control and Management

You may provide feedback and evaluation on the content output by LongCat.AI's products/services. You can inform us through the feedback function provided on our website. We will collect your feedback information to continuously improve the quality of output content and optimize the service experience.

# III. Protection of Personal Information

  1. We attach great importance to the protection of your personal information. We will take necessary measures to protect the security of users' personal information and will legally protect your rights to browse, access, copy, correct, modify, supplement, delete relevant personal information, and withdraw authorization. We will employ encryption technology, anonymization processing, and other technical measures and security measures matching this service to protect your personal information. You can read the "LongCat.AI Privacy Policy" for further information.

  2. If you have any questions, suggestions, complaints, reports, or any feedback during use, you can contact us through the following methods. We will respond to your request within 15 days after verifying your identity:

(1) Contact customer service phone 1010-7888 for feedback. We also welcome any suggestions or feedback during your use of our service.

(2) Contact our personal information protection officer at privacy@meituan.com for complaints and feedback.

# IV. Special Tips for Using This Service

Please understand that large language models and generative artificial intelligence technology are continuously evolving and innovating. We are very concerned about the security risks of large models and artificial intelligence technology. Although we will make our best efforts to ensure the safety of artificial intelligence technology applications, due to technical limitations or ethical considerations, we cannot guarantee that risks posed by new technologies will be completely controlled or eliminated. If you choose to continue using LongCat.AI, you should fully understand and agree to the following:

  1. The generated content of this service is produced by large language model technology, which is continuously being improved. The generated content has randomness and cannot guarantee uniqueness. Such information does not represent the position of the service provider.

  2. You understand and agree that we may output the same or similar generated content to different users, and may also generate different content results for the same content uploaded to our service platform. The generated content results may contain errors or omissions. This service makes no guarantee regarding the accuracy, completeness, timeliness, and functionality of its generated content. Where the situation may have a significant impact on you or relevant parties (such as legal, medical, financial, or other professional scenarios or fields), this service cannot substitute for professional personnel to provide you with answers. Such content is for your reference only. You are legally responsible for any judgments made based on the generated content or any subsequent related actions taken based on such content. Please use this service prudently, rationally, and in compliance with the law.

  3. We attach great importance to content safety issues of the model and will make reasonable efforts to employ safety measures to filter inappropriate/harmful content generated by the model, ensuring that its output results comply with laws and regulations and reasonable user expectations as much as possible. However, we cannot rule out the possibility of errors or unreasonable content. If you encounter such situations, please contact us and provide feedback promptly. We will promptly handle information suspected of being false, biased, or inappropriate, and further optimize the model.

  4. You are responsible for the content you input. You must ensure that your input content does not infringe upon the rights of others and must not input content suspected of being illegal or inappropriate.

  5. You have the right to use this service in accordance with the provisions of this agreement. If you publish or disseminate the content generated by this service externally, you should clearly identify or indicate in a prominent manner that the output content is generated by artificial intelligence to inform the public of the content synthesis situation. For the artificial intelligence generation content labels already marked by us (including prominent labels visible to the naked eye on the generated content and covert labels embedded in the metadata of the generated content through specific technical means), you or any organization and individual shall not adopt technical means to delete, alter, or conceal them.

# V. Contact Us

If you have any opinions, suggestions, questions, or need assistance regarding this disclosure or our service, please contact us through the following methods:

(1) Customer service phone 1010-7888. We welcome your feedback on product features, user experience, and all other aspects. Your suggestions are the driving force for our progress.

(2) Contact email privacy@meituan.com for feedback. We welcome you to send emails with your suggestions and comments.

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