LongCatAI Platform Service Agreement

Update Date: September 5, 2025

Effective Date: September 5, 2025

Welcome to use LongCat.AI Platform services!

The LongCat.AI Platform is owned and operated by Beijing Kuxun Interactive Technology Co., Ltd. and its affiliated companies (hereinafter referred to as "we", "Meituan" or "LongCat Platform"), focusing on providing generative artificial intelligence technology services for developers. As a component of the "LongCat.AI User Service Agreement", this "LongCat.AI Platform Service Agreement" (hereinafter referred to as "this Agreement") specifically applies to your activities as an individual or enterprise developer (hereinafter referred to as "you" or "developer") using the application programming interfaces (APIs) or other developer tools provided by this platform to develop applications, services or tools for internal organizations or end users.

This Agreement, together with the "LongCat.AI User Service Agreement" and others, constitutes the agreement for your use of this service. In case of conflicts between terms, this Agreement shall prevail. Please pay special attention to the bold clauses regarding responsibility division, rights limitations and obligation agreements. It is recommended that developers read all agreement texts completely and fully understand the service rules.

This service is primarily intended for adults with full civil capacity, enterprises and other legal organizations. If you are under 18 years old or lack civil capacity, you need to read the agreement under the supervision of a legal guardian and obtain their consent before use. Meanwhile, please ensure that you are not subject to trade restrictions, sanctions or other legal restrictions imposed by any country, international organization or region, otherwise you may not be able to use the service normally.

When you agree to the agreement by clicking confirm, checking boxes or other methods through web pages, or actually use this service, it is deemed that you have accepted all terms and agreed to be bound by them. If you cannot accurately understand or disagree with any content, please stop using this service.

I. Account Registration and Use

  1. LongCat.AI Platform service uses the unified account of Meituan and LongCat.AI services. You should register, log in and use the account according to the requirements in the "LongCatAI User Service Agreement", and comply with the laws, regulations and account management requirements in the user agreement.

  2. When using Platform services, you can perform individual account or enterprise account authentication. Please choose the appropriate account type according to your identity and actual usage when using the service, and submit real-name information for account authentication according to the requirements on the product page. Authenticated accounts can enjoy more services, specifically:

Individual Authentication: If the account is used as an individual, you should ensure that the authentication subject is an adult with full civil capacity. If the user is a minor or lacks the civil capacity to use this service, registration and authentication should be completed by a legal guardian with full civil capacity, and the legal guardian shall be responsible for the account and its use.

Enterprise Authentication: If the account is used as an enterprise, you should ensure that you have the authorization granted by the enterprise to register and use this service, and complete authentication on behalf of the enterprise. The enterprise shall be responsible for the account and its use, and your account operations should be regarded as the enterprise's own operations after authentication. When enterprise account administrators change, account rebinding operations should be performed promptly. Any losses caused by failure to rebind in time shall be borne by the authenticated enterprise itself.

  1. Individual developers or enterprise developers have legitimate use rights to the account and bear legal responsibility for all behaviors under the account. You should properly keep your account and shall not transfer, lend, rent or provide the account to others for use in any form without authorization. If losses are caused by your failure to keep the account properly, including account theft or illegal use without timely remedial measures, you shall bear the responsibility yourself.

  2. The API key you create through your LongCat.AI account is the core credential for calling Platform services. Please take strict confidentiality measures to prevent leakage. Do not embed keys in browser/client code, share through public channels or display in unnecessary scenarios. If abnormal account login or key leakage occurs, please immediately revoke the key through the console and contact longcat-team@meituan.com or customer service phone 1010-7888 in time. Consequences such as unauthorized calls and fee losses caused by developers' failure to handle leakage promptly, improper key management or illegal use shall be borne by the account authentication subject. We have the right to take measures such as account freezing and temporary service suspension when security risks are detected to ensure your account security and Platform system security.

II. Service Details

  1. LongCat.AI Platform provides large language model API calling services and derivative functions, supporting developers to integrate artificial intelligence generation capabilities into various application scenarios. During your use of our services, the model generates corresponding content as responses (hereinafter referred to as "output" or "generated content") through computational reasoning based on information input by you and your end users (hereinafter referred to as "input"), including text, tables and code.

  2. Service Types

Free Services: We may provide some services to you for free through test quotas, vouchers and other forms. The corresponding amounts cannot be withdrawn, transferred or invoiced. For this part of services, we have the right to decide whether to continue providing or stop. When using free services, please be sure to note this characteristic to avoid being affected by the inability to continue using free services.

Paid Services (if any): After you complete identity authentication, you can purchase and use our paid services through prepayment. Before recharging, please be sure to read and understand all contents of this Agreement, recharge agreement and user manuals published on our web pages. Product pricing, types, financial compliance requirements and other contents shall be subject to official website/order page announcements. After fully understanding the content, pricing and usage methods of this service, proceed with subsequent recharging and use. Related content may be adjusted from time to time, please pay attention in time. If you encounter unclear areas, please contact customer service promptly.

  1. We may perform daily maintenance on this service according to service operation and upgrade needs, which may cause partial or complete unavailability of this service during daily maintenance periods.

  2. With the continuous iterative development of generative artificial intelligence technology, models and products, as well as changes in laws and regulations, we may add, upgrade, change, suspend or terminate services, or make necessary adjustments to service technology, methods, performance, etc. If the above changes have important impacts on your rights and interests, we will notify you promptly through prominent methods such as in-site push, website announcements or email/SMS. If you continue to choose to use the service after service changes, it means you have agreed to the service content adjustments. If you have objections to the updated agreement terms, you have the right to stop using this service.

III. Developer Behavioral Standards

  1. You must strictly comply with laws, regulations, the "LongCatAI User Service Agreement" and this Agreement, and should also comply with other related rules and policies published by us on service-related pages, adhering to principles of voluntariness, equality, fairness and good faith. You shall not use this service for illegal, non-compliant or other behaviors that may endanger national security, social public interests, infringe upon others' legitimate rights and interests, or disrupt platform business order. When you use the output of this service to provide products or services externally, you should strictly comply with various laws and regulations, obtain legal business qualifications and government approvals, meet regulatory requirements, and ensure network security, data security and personal information security.

  2. LongCat.AI Platform provides neutral, basic model technology services. This technology service is only part of downstream systems, applications or functions in the value chain and cannot determine the final purpose and use of services. As the provider and operator of downstream systems, applications or functions, you should bear corresponding legal responsibilities and obligations for applications developed by integrating LongCat technology, legally obtain business qualifications, and agree on mutual rights and obligations with end users who ultimately use the systems, applications or functions you provide (i.e., "end users"), standardizing and managing end users' usage behaviors.

  3. You should bear corresponding legal responsibilities as a deep synthesis service provider and generative artificial intelligence service provider in providing generative artificial intelligence services according to requirements of laws and regulations such as the "Internet Information Service Deep Synthesis Management Regulations" and "Interim Measures for the Management of Generative Artificial Intelligence Services". Services involving public opinion attributes or social mobilization capabilities should legally conduct compliance procedures such as security assessments and algorithm filings, as well as other applicable approvals, licenses, filings and assessments.

  4. LongCat.AI Platform has adopted multiple methods to identify artificially generated synthetic content according to requirements of relevant laws, regulations and national standards such as the "Interim Measures for the Management of Generative Artificial Intelligence Services", "Artificial Intelligence Generated Synthetic Content Identification Methods" and "Network Security Technology - Artificial Intelligence Generated Synthetic Content Identification Methods (GB45438—2025)", including but not limited to explicit identification and implicit identification.

Unless otherwise stipulated by laws and regulations or otherwise agreed in writing with the large model Platform, you shall not tamper with, eliminate, erase or cover explicit identification, implicit identification (including metadata identification and digital watermarks) embedded by the large model Platform in artificially generated synthetic content, or various identifications added to interactive interfaces in any way.

When you distribute or disseminate content generated using this Platform externally, as a network information service provider, you should identify text generated and synthesized using artificial intelligence technology. If you fail to properly identify artificially generated synthetic content as required, and consequently suffer user complaints or regulatory penalties, you shall bear the relevant responsibilities independently. If the Platform suffers any losses due to your failure to properly identify artificially generated synthetic content as required, you should compensate the Platform for all economic losses suffered. If the Platform is complained against or sued by third parties due to your actions, you should actively cooperate with the Platform to provide necessary evidence support and assistance, including but not limited to providing relevant documents, testifying in court, jointly responding to lawsuits, etc., and bear reasonable expenses incurred by the large model Platform. You should also require your end users not to tamper with/conceal identification information.

  1. As a network information content producer, you should fulfill network information security obligations, establish content security identification and filtering mechanisms, review end users' inputs and outputs through keyword filtering, illegal content feature libraries, risk identification models, etc., and continuously improve network information security review mechanisms to effectively manage and control the security, accuracy and reliability of content generated by services. All outputs generated by your use of this service should comply with laws, regulations, policies, social public order and moral customs, such as prohibiting content that endangers security, pornography, violence, offense, insult, etc. We recommend that you strengthen security review and emergency protection of output content. Economic and legal responsibilities arising from this need to be borne by yourself.

  2. You should bear legal responsibilities as a data processor and personal information processor in activities such as collecting, processing, using, storing, deleting and sharing end user data (including personal information) according to requirements of laws and regulations such as the "Data Security Law" and "Personal Information Protection Law". When personal information is involved, you should inform and disclose your personal information processing rules to end users before providing services, and obtain end users' consent or have other legal bases for collecting and processing personal information and entrusting us to process personal information. You should ensure that personal information collection and processing comply with relevant requirements of personal information protection and meet principles of legality, legitimacy and necessity. For end users' rights requests regarding personal information such as access, copying, transfer, correction, supplementation and deletion, you should respond promptly according to legal and regulatory requirements. Please refer to the "LongCat.AI Platform Privacy Policy" for details.

  3. You should carefully read the risk warnings in the user service agreement. We emphasize again that due to technical limitations, this service does not guarantee any accuracy or validity of output content. Please do not use the output content of this service as the sole source of facts or absolutely true information to provide services externally. You cannot directly use output as professional advice in medical, legal, financial, educational and other fields to provide services externally. Do not directly use generated content to make decisions that may have legal or other significant impacts on individuals. In addition, you should not regard output content as Meituan's views or provide output externally as Meituan's views. We do not endorse the authenticity, accuracy or reliability of content, subjects or content in search web links involved in this service output.

  4. If you choose to use the internet search function in this service, the service output content may substantially come from organizing information published by third parties on the internet. Considering that such information is not published and controlled by us, you should independently confirm the accuracy, completeness, timeliness, reliability, legality of such information and whether it infringes upon third party rights, and be responsible for subsequent use of such information.

  5. You should continuously ensure system security, eliminate vulnerabilities and hidden dangers in access links, and adopt network protection measures such as monitoring audits and emergency response. Losses caused by security defects shall be fully borne by you. If data security, public opinion risks or any risks and responsibilities arising from product or service abuse, dissemination, improper use occur due to users using services you provide, you should bear them yourself. If this causes us losses, you should bear corresponding responsibilities to us and we have the right to terminate this Agreement without bearing any responsibility.

  6. You promise that you clearly understand the characteristics of this service, especially understanding that knowledge documents, data, text, files, materials, links and other content you input will be used within the scope agreed in this Agreement (including providing and optimizing services, etc.). Therefore, before using this service, please be cautious about inputting information that may contain personal information or trade secrets. Once you input, it is deemed that you agree to our use of the above information within the service scope. If damage is caused to yourself, us or third parties due to your input, you should bear full responsibility. For outputs generated based on your inputs, you should use them legally and compliantly. If damage is caused to yourself, us or third parties due to your improper use, you should also bear full responsibility.

IV. Intellectual Property and Other Rights

  1. Except for rights that relevant rights holders should enjoy according to legal provisions, Meituan enjoys all rights within the scope permitted by laws and regulations (including but not limited to copyrights, trademark rights, patent rights and other intellectual property rights and other rights) to this service (including but not limited to software, technology, programs, codes, model weights, user interfaces, web pages, text, charts, layout design, trademarks, electronic documents). For the avoidance of doubt, ownership and intellectual property rights of LongCat models belong to Meituan, including but not limited to model parameters, algorithms, codes, framework structures, etc.

  2. Without infringing upon others' legitimate intellectual property rights or other rights and complying with this Agreement, you own intellectual property rights, other rights and obligations to be responsible for your input and output content within the scope permitted by law. Due to technical limitations, we cannot guarantee that other users' content is completely inconsistent with your content. It is not excluded that output content may be similar. In view of this, the rights you enjoy over output cannot naturally extend to other users' content. You declare and guarantee that you and your end users have all rights, licenses and permissions required to process inputs according to our terms for inputs submitted to our services by you and your end users. These inputs and corresponding outputs do not infringe upon anyone's intellectual property rights, portrait rights, reputation rights, honor rights, name rights, privacy rights, personal information rights and other legitimate rights and interests, and do not involve any state secrets, trade secrets or other data that may adversely affect national security or public interests.

  3. To enhance your experience using this service and continuously improve our service quality, you grant us and/or affiliates a free, worldwide, transferable, sublicensable and re-sublicensable right to use your input and output content and optimization suggestions within the scope permitted by law, for purposes including but not limited to model service optimization, brand promotion and publicity.

  4. Without Meituan's written consent, you cannot display or use trademarks, service marks, trade names, business names, domain names, website names or any other distinctive brand features ("marks") owned by Meituan or Meituan's affiliated companies alone or in combination with other methods, nor can you disclose Meituan or Meituan's affiliated companies as your cases, cooperation partners, etc. on your websites, clients, applications, news media, capital markets and other public occasions.

  5. We will collect and process personal information generated and provided by you as a personal information subject when using Platform services according to the "LongCat.AI Platform Privacy Policy". When your end users access downstream systems, applications or functions you develop based on the Platform, the processing rules for their collected personal information are not within the scope of that privacy policy. You, as the processor of personal information processing activities in that scenario, should disclose relevant personal information protection rules to end users.

V. Breach of Contract Liability

  1. You understand and agree that for your violations of this Agreement and relevant laws and regulations, we can make independent judgments, including comprehensive determinations based on your various information and behavioral data or other interactive relationships. Without notice, we can take measures against you including but not limited to warning reminders, deadline corrections, limiting account functions, suspending use, freezing and confiscating recharge amounts, closing accounts, prohibiting re-registration, deleting relevant content, etc. We have the right to announce processing results and decide whether to restore use based on actual circumstances.

  2. You should independently bear all legal responsibilities or any claims and demands asserted by third parties due to your breach of contract. If this causes us any losses, you should provide full compensation (including litigation fees, arbitration fees, attorney fees, notarization fees, announcement fees, appraisal fees, travel expenses, investigation and evidence collection fees, compensation, liquidated damages, settlement costs, administrative penalty fines, etc. incurred by us in defending our rights). You agree that we can deduct losses you cause us through including but not limited to account balances (including various associated accounts under the same entity) or canceling corresponding services.

VI. Disclaimer and Liability Limitation

  1. You understand and agree that during the use of this service, you may encounter risk factors such as force majeure that cause interruption or termination of services under this service agreement. Force majeure refers to objective events that cannot be foreseen, overcome or avoided and cause significant impact on one or both parties, including but not limited to information network equipment maintenance, information network connection failures, computer, communication or other system failures, power failures, strikes, labor disputes, riots, uprisings, disturbances, insufficient productivity or means of production, fires, floods, storms, explosions, wars, government actions, changes in laws and regulations, orders from judicial administrative organs, other force majeure or inability to provide services or delayed services due to third party inaction. When the above situations occur, Meituan will strive to cooperate with relevant departments at the first time for timely repair, but Meituan is exempt from liability within the scope permitted by law for losses caused to you.

[Other Exemption Reasons] You understand and agree that in compliance with legal provisions, Meituan bears no responsibility for service interruption or termination caused by the following reasons:

(1) Damage from computer viruses, trojans or other malicious programs, hacker attacks;

(2) Failures in users' or Meituan's computer software, systems, hardware and communication lines;

(3) Improper user operations;

(4) Users using this service through methods not authorized by Meituan;

(5) Other circumstances beyond Meituan's control or reasonable foresight.

  1. You understand and agree that this service is provided according to the current state achievable by existing technology and conditions. We cannot guarantee that this service is flawless. We will make the greatest commercial efforts to ensure the continuity and security of the official website and services. Meanwhile, please understand and agree that we cannot make any guarantees regarding the following matters:

(1) We do not guarantee that this service completely meets your requirements or usage purposes;

(2) We do not guarantee that this service is accurate, reliable, functional, timely, error-free, uninterrupted, continuously stable, and free from any failures;

(3) We do not guarantee that all information in this service is flawless, unbiased, non-infringing, and completely reasonable;

(4) We do not guarantee the accuracy, stability and completeness of codes, programs and their referenced content in this service;

(5) We do not guarantee that content output through malicious inducement or other usage methods violating this Agreement is consistent with the views of this service's operating entity;

(6) Other circumstances beyond our control or reasonable foresight.

  1. We bear no responsibility for any damages arising from your use of this service or products, services, information, data provided to your customers/users through this service. Meanwhile, regardless of the liability theory basis, we bear no indirect, incidental, derivative or punitive liability to you, including but not limited to profit losses, business reputation damage, data loss or other tangible or intangible losses, regardless of whether we know or should know the possibility of such losses or damages. Unless otherwise clearly stipulated by laws and regulations, our total direct liability to you, regardless of cause or method, shall not exceed your total consumption amount on LongCat.AI Platform in the most recent natural month (if any).

  2. For overall service operation needs, we have the right to decide service/function settings and scope, and modify, interrupt, suspend or terminate this service based on specific circumstances.

  3. We have the right to handle illegal and non-compliant content according to this Agreement, but this right does not constitute our obligation or commitment. We cannot guarantee timely discovery or handling of all illegal behaviors.

  4. We reserve the right to transfer rights or obligations under this clause to any affiliated companies, subsidiaries or any business successors related to this service.

VII. Cancellation

  1. You have the right to stop using this service at any time, including canceling your account. You can apply to cancel your account through our contact email or by communicating with customer service. Before canceling your account, please pay attention to the usage of your account recharge balance. Once canceled, your account, data, API and recharge balance will be cleared. Even if you register again through the same entity, please choose carefully.

  2. We need time to review your cancellation situation. When we receive your cancellation application, we may freeze your account usage. If you want to withdraw your cancellation application during the review period, please contact us promptly.

  3. When canceling, if there is still unused balance in the account, we will send you a balance clearing reminder. If you agree to cancel, we will continue your cancellation process. If you do not explicitly agree, your account will temporarily not be canceled.

  4. After account cancellation, we still need to retain your corresponding registration data and behavioral records according to requirements of laws and regulations such as the Network Security Law. If you have illegal or breach of contract behaviors during your use of this service before cancellation, we still have the right to exercise rights stipulated in this Agreement.

  5. If you have behaviors violating laws and regulations or serious breaches of contract, we have the right to unilaterally cancel your account.

VIII. Notice and Service

  1. You should provide us with true and effective contact information. When contact information changes, please be sure to update it with us promptly. If you cannot timely obtain business notifications, customer service, complaint handling, dispute coordination, technical support, etc. due to false, invalid, or untimely updated contact information, you shall bear corresponding consequences and responsibilities.

  2. We will send you various information related to the official website and services (including but not limited to updated service rules, service upgrades, advertisements, etc.) through one or more methods including official website announcements, emails, SMS, instant messaging tools, etc., such as business notifications, service reminders, verification messages, marketing information. Contact addresses, phones, emails and/or other contact methods you provide to us in any form are deemed valid contact methods for service. Such notices will have significant impacts on your rights and obligations, please pay attention promptly. The aforementioned information is deemed served in the following situations: (1) Published in the form of web announcements, etc., effective immediately upon publication (unless otherwise specified); (2) Sent electronically (including system notifications, internal messages, emails, SMS, instant messaging tools, etc.), deemed served after successful sending; (3) Sent in paper form, deemed served on the third (3rd) natural day after mailing.

  3. We may send notices to your contact information provided during your use of the official website and services for purposes such as user message notifications, identity verification, security verification, user experience research, etc. In addition, we may also share commercial information about services, functions or activities that may interest you through the aforementioned contact methods. If you do not wish to receive such information, you can unsubscribe through the unsubscribe method provided in SMS, or contact us directly to unsubscribe.

IX. Applicable Law and Dispute Resolution

  1. The conclusion, effectiveness, interpretation, revision, supplementation, termination, execution and dispute resolution of this Agreement shall be governed by the laws of mainland China.

  2. If disputes arise regarding the signing, performance or interpretation of this Agreement, both parties should strive for friendly consultation and resolution. If consultation fails, either party has the right to file a lawsuit in a court with jurisdiction in Chaoyang District, Beijing, where this Agreement is signed.

X. Others

  1. Severability and Enforceability of Terms: If any provision of this Agreement is deemed abolished, invalid or unenforceable, that provision should be regarded as severable and does not affect the validity and enforceability of other provisions of this Agreement. In addition, our delay or temporary non-exercise of any rights under this Agreement should not be regarded as waiver of such rights.

  2. To continuously optimize service experience and adapt to changes in national laws and regulations, policy adjustments, technical conditions and product functions, we may update this Agreement from time to time. Updated agreement content will constitute part of this Agreement and notify you through page announcements, page prompts or information push and other prominent methods. If you continue to use this service, it means you have agreed to accept the updated agreement content. If you have objections to the updated agreement terms, you have the right to stop logging in or using this service. If you continue to log in or use this service, it is deemed that you recognize and accept the modified agreement terms.

  3. The subheadings in this Agreement are set only for reading convenience and do not serve as interpretation basis for agreement terms.

XI. Contact Us

  1. Feedback Channels: If you have any usage problems with this service, please contact us at any time. You can contact us through website announcements or by sending emails to longcat-team@meituan.com.

  2. Complaint and Report Channels: If you find illegal or non-compliant behaviors, illegal or harmful information in this service or its generated content, or infringement of your legitimate rights and interests (including but not limited to intellectual property rights, personal information, portrait rights, reputation rights, etc.), please contact us for reporting or complaints at any time. When your legitimate rights and interests are infringed and you file a complaint, you need to submit your real identity information and preliminary evidence of infringement according to legal requirements. You can contact us by sending emails to tousujubao@meituan.com or calling customer service phone 1010-7888. We will handle your requests as soon as possible according to legal provisions.

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Contributors: zhuqi09