Welcome to AI Nexus (tokencnn.com), a unified AI model gateway platform operated by Hainan Tongcheng Technology Co., Ltd. (海南通骋科技投资有限公司).
This User Agreement (the "Agreement") is a legally binding contract between you ("User," "you," or "your") and AI Nexus ("Platform," "we," "us," or "our") governing your access to and use of the platform, website, APIs, documentation, and related services.
PLEASE READ THIS AGREEMENT CAREFULLY BEFORE REGISTERING OR USING OUR SERVICES. BY REGISTERING AN ACCOUNT, ACCESSING THE PLATFORM, OR MAKING ANY API CALL, YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTOOD, AND AGREE TO BE BOUND BY THIS AGREEMENT. IF YOU DO NOT AGREE, DO NOT USE THE SERVICES.
1.1 AI Nexus is a unified API gateway that provides developers and enterprises with programmatic access to multiple Chinese artificial intelligence models from a single endpoint. The platform supports the following models and providers (list may be updated from time to time):
1.2 We support a multilingual interface in English, Chinese (Simplified), Japanese, Vietnamese, French, and Russian.
1.3 The platform is hosted on servers located in Singapore and serves a global developer audience.
2.1 By accepting this Agreement, you represent and warrant that:
2.2 If you are accepting this Agreement on behalf of a legal entity, you represent that you have the authority to bind that entity. In such case, "you" and "your" refer to that entity.
3.1 To access the platform's API services, you must register an account by providing a valid email address and creating a secure password. You may also register via supported OAuth providers (Google, GitHub).
3.2 You agree to provide accurate, current, and complete information during registration and to update such information promptly when it changes.
3.3 You are solely responsible for maintaining the confidentiality of your account credentials, including your password and all API keys generated under your account. You are fully liable for all activities that occur under your account, whether or not authorized by you, unless such activity results from our gross negligence.
3.4 You must notify us immediately at cnn@tokencnn.com if you become aware of any unauthorized use of your account or API keys. We will not be liable for any loss or damage arising from your failure to comply with this obligation.
3.5 Each individual or entity may maintain one account unless otherwise agreed in writing. Multiple accounts created to circumvent rate limits, billing restrictions, or sanctions will be terminated.
3.6 You may not transfer, sell, lease, or otherwise delegate access to your account or API keys to any third party.
4.1 The platform operates on a prepaid, usage-based billing model. Fees are calculated based on the number of tokens consumed across all API calls, with rates varying by model. Current pricing is published on our website and may be updated from time to time.
4.2 You agree to pre-fund your account balance via one of our supported payment methods: Stripe (credit/debit card), Creem (alternative payment methods), or ZPAY (WeChat Pay / Alipay for users in supported regions).
4.3 Usage fees are deducted from your prepaid balance in real time. If your account balance reaches zero or goes negative, we reserve the right to suspend or terminate your access to the services immediately without prior notice.
4.4 All fees are exclusive of applicable taxes. You are responsible for paying all taxes, duties, and government charges associated with your use of the services, other than taxes based on our net income.
4.5 Prepaid balances are non-refundable and non-transferable, except as expressly required by applicable law. In certain jurisdictions, you may have a statutory right to withdraw from a purchase within a cooling-off period — please contact us for details.
4.6 We reserve the right to change our pricing at any time. Price increases will be communicated to you at least 14 days in advance via email and a platform announcement. Price decreases apply immediately.
4.7 If you have an outstanding invoice more than 30 days past due, we may charge late interest at the rate of 1.5% per month (or the maximum rate permitted by law, whichever is lower).
5.1 AI Nexus acts as an intermediary gateway. When you use our API to call a third-party model (including but not limited to DeepSeek, Qwen, GLM, Doubao, and MiniMax), your use of that model is also subject to the terms and conditions of the respective upstream provider. We encourage you to review those terms before use.
5.2 Key upstream terms you should be aware of include (as of the date of this Agreement):
5.3 You are solely responsible for ensuring your use of each model complies with the applicable upstream terms. We make no representation or warranty regarding the compatibility of your use case with any upstream provider's terms.
5.4 We reserve the right to discontinue support for any model or provider at any time without liability to you.
6.1 Definition: "User Content" means any data, text, code, images, files, prompts, instructions, or other materials that you submit, upload, or transmit to the platform via the API or website.
6.2 Ownership: As between you and AI Nexus, you retain all right, title, and interest in and to your User Content. Nothing in this Agreement transfers ownership of your User Content to us.
6.3 License to Operate: By submitting User Content to the platform, you grant us a non-exclusive, royalty-free, worldwide, limited license to access, use, process, store, reproduce, and transmit your User Content solely as necessary to:
6.4 Output: To the extent permitted by applicable law and applicable provider terms, you own the output generated by AI models in response to your prompts. However, certain upstream providers may assert rights over generated content — please refer to Section 5 above.
6.5 Opt-In Content Logging: By default, we do not store the content of your prompts or model responses beyond transient processing. If you opt in to content logging via your Console settings, you grant us an additional license to retain and analyze your User Content for purposes of service improvement, quality assurance, and internal model training. You may revoke this consent at any time, and we will delete stored content within 30 days of revocation.
6.6 Warranty: You represent and warrant that your User Content does not infringe or violate any third-party intellectual property rights, privacy rights, or other legal rights, and that you have all necessary rights and permissions to submit it for processing through our platform.
7.1 You agree not to misuse the platform. Prohibited activities include, but are not limited to:
7.2 We reserve the right to investigate any suspected violation of this Code of Conduct. If we determine, in our sole discretion, that you have engaged in prohibited conduct, we may take any action we deem appropriate, including warning you, suspending or terminating your account, withholding payments, and reporting you to relevant authorities.
8.1 Authorized Testing: We encourage responsible security research and red-teaming activities that improve platform safety. If you wish to conduct security testing against our platform, you must first obtain our written authorization by contacting cnn@tokencnn.com.
8.2 Scope: Authorized testing is limited to:
8.3 Prohibited: The following activities are never authorized:
8.4 Safe Harbor: If you comply with the terms of this Section 8 and our authorized testing guidelines, we will not pursue legal action against you for your security research. We may publicly acknowledge your contribution (with your consent).
8.5 Unauthorized red-teaming or security testing that violates this Section 8 will be treated as a breach of the User Code of Conduct (Section 7) and may result in account termination and legal action.
9.1 Termination by You: You may terminate this Agreement at any time by discontinuing use of the services and closing your account through the Console settings or by contacting cnn@tokencnn.com.
9.2 Termination by Us: We may terminate or suspend this Agreement and your access to the platform immediately, without prior notice or liability, if:
9.3 Effect of Termination: Upon termination:
10.1 Our Privacy Policy describes how we collect, use, store, protect, and share your personal information. It is incorporated into this Agreement by reference. By using the platform, you consent to the data practices described in the Privacy Policy.
10.2 Data Processing Addendum (DPA): To the extent that we process any personal data on your behalf (e.g., if you are a business using our API and your prompts contain personal data of your end users), the terms of our Data Processing Addendum, which are available upon request at cnn@tokencnn.com, shall apply and are incorporated into this Agreement by reference. Our DPA reflects the requirements of Article 28 of the GDPR and includes the Standard Contractual Clauses (Module 2: Controller-to-Processor) for international data transfers.
10.3 In the event of a conflict between this Agreement and the Privacy Policy or DPA, the Privacy Policy or DPA (as applicable) shall prevail with respect to data protection matters.
11.1 All intellectual property rights in and to the AI Nexus platform, including but not limited to the website design, API specifications, documentation, software libraries, SDKs, trademarks (including "AI Nexus" and "tokencnn.com"), logos, trade dress, and underlying technology, are and shall remain the sole and exclusive property of Hainan Tongcheng Technology Co., Ltd. or its licensors.
11.2 You are granted a non-exclusive, non-transferable, revocable, worldwide license to access and use the platform and API during the term of this Agreement, solely for your internal business purposes or personal development use. This license does not include the right to:
11.3 Nothing in this Agreement grants you any right, title, or interest in our intellectual property beyond the limited license expressly described.
12.1 We welcome and encourage feedback, suggestions, ideas, improvement requests, or recommendations ("Feedback") regarding our platform. You may submit Feedback through our support channels, documentation repositories, community forums, or during beta testing programs.
12.2 IP Assignment: To the maximum extent permitted by applicable law, you hereby irrevocably assign and transfer to us all right, title, and interest in and to any Feedback you provide, including all intellectual property rights therein. This means we may use, implement, modify, commercialize, and distribute any Feedback without any restriction, attribution, or compensation to you.
12.3 If the foregoing assignment is not effective under applicable law, you grant us a non-exclusive, perpetual, irrevocable, royalty-free, worldwide, transferable, sublicensable license to use, reproduce, modify, create derivative works from, publish, distribute, and otherwise exploit your Feedback for any purpose.
12.4 You agree that we are under no obligation to use, implement, or respond to any Feedback. We may, at our discretion, acknowledge contributors publicly.
13.1 "Confidential Information" means any non-public information disclosed by one party ("Disclosing Party") to the other ("Receiving Party"), whether orally, in writing, or in any other form, that is designated as confidential or that reasonably should be understood to be confidential given the nature of the information and circumstances of disclosure. This includes, for us, our API design, pricing strategies, infrastructure details, and unpublished features.
13.2 The Receiving Party agrees to:
13.3 These obligations do not apply to information that:
13.4 This Section 13 survives termination of this Agreement for a period of three (3) years.
14.1 You agree to indemnify, defend, and hold harmless AI Nexus, Hainan Tongcheng Technology, its affiliates, officers, directors, employees, and agents from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or relating to:
14.2 We reserve the right, at our own expense, to assume the exclusive defense and control of any matter subject to indemnification by you. You agree to cooperate with our defense of such claims.
14.3 This indemnification obligation survives termination of this Agreement.
15.1 THE PLATFORM AND ALL SERVICES, APIs, MODELS, AND CONTENT ARE PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT ANY WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY.
15.2 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WE EXPRESSLY DISCLAIM ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO:
15.3 AI Nexus acts solely as an intermediary technology platform and does not create, generate, or control the content produced by upstream AI models. We make no representations or warranties regarding the outputs generated by third-party models, including their accuracy, safety, legality, or suitability for any particular purpose.
15.4 No advice or information, whether oral or written, obtained by you from us or through the platform shall create any warranty not expressly stated in this Agreement.
15.5 Some jurisdictions do not allow the exclusion of certain implied warranties, so the above exclusions may not apply to you to the extent prohibited by applicable law.
16.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL AI NEXUS, HAINAN TONGCHENG TECHNOLOGY, OR THEIR AFFILIATES, OFFICERS, DIRECTORS, EMPLOYEES, OR AGENTS BE LIABLE FOR:
16.2 OUR TOTAL CUMULATIVE LIABILITY TO YOU ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT OR YOUR USE OF THE PLATFORM, WHETHER IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR OTHERWISE, SHALL NOT EXCEED THE GREATER OF:
16.3 The limitations in this Section 16 do not apply to:
17.1 This Agreement and any dispute or claim arising out of or in connection with it (whether contractual or non-contractual) shall be governed by and construed in accordance with the laws of Hong Kong Special Administrative Region, without regard to its conflict of laws principles.
17.2 The United Nations Convention on Contracts for the International Sale of Goods (CISG) does not apply to this Agreement.
18.1 Negotiation: Before initiating any formal proceedings, the parties agree to attempt to resolve any dispute arising under this Agreement through good-faith negotiation for at least thirty (30) days. Either party may initiate negotiation by sending a written notice describing the dispute in reasonable detail.
18.2 Arbitration: If the dispute cannot be resolved through negotiation within 30 days, the dispute shall be finally settled by arbitration administered by either:
18.3 The seat of arbitration shall be Hong Kong (for HKIAC) or Singapore (for SIAC). The language of the arbitration shall be English. The tribunal shall consist of a single arbitrator appointed in accordance with the applicable rules.
18.4 No Class Actions: YOU AND AI NEXUS AGREE THAT EACH PARTY MAY BRING CLAIMS AGAINST THE OTHER ONLY IN ITS INDIVIDUAL CAPACITY AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, REPRESENTATIVE, OR PRIVATE ATTORNEY GENERAL ACTION. The arbitrator may not consolidate more than one person's claims or preside over any class or representative proceeding.
18.5 Emergency Relief: Notwithstanding the foregoing, either party may seek injunctive or other equitable relief from a court of competent jurisdiction to protect its intellectual property rights or confidential information without waiving the right to arbitrate the underlying dispute.
18.6 The provisions of this Section 18 shall survive termination of this Agreement.
19.1 Entire Agreement: This Agreement, together with the Privacy Policy and any DPA incorporated by reference, constitutes the entire agreement between you and AI Nexus regarding your use of the platform and supersedes all prior or contemporaneous understandings and agreements (whether written or oral).
19.2 Severability: If any provision of this Agreement is held to be invalid, illegal, or unenforceable under applicable law, the remaining provisions shall continue in full force and effect, and the invalid provision shall be reformed to the minimum extent necessary to make it valid and enforceable.
19.3 Waiver: No failure or delay by either party in exercising any right under this Agreement shall constitute a waiver of that right. No waiver shall be effective unless in writing and signed by the waiving party.
19.4 Assignment: You may not assign or transfer this Agreement, in whole or in part, by operation of law or otherwise, without our prior written consent. We may assign this Agreement freely without your consent in connection with a merger, acquisition, reorganization, or sale of all or substantially all of our assets.
19.5 Force Majeure: Neither party shall be liable for any delay or failure to perform its obligations under this Agreement (other than payment obligations) due to causes beyond its reasonable control, including acts of God, natural disasters, war, terrorism, civil unrest, government action, pandemic, internet service provider failures, or third-party infrastructure failures.
19.6 Notices: All notices under this Agreement shall be in writing and delivered by email. Notices to you will be sent to the email address associated with your account. Notices to us shall be sent to cnn@tokencnn.com. Email notice is deemed received 24 hours after sending, unless the sending party receives a bounce-back or undeliverable notification.
19.7 Relationship: Nothing in this Agreement creates a partnership, joint venture, agency, or employment relationship between you and AI Nexus.
19.8 Language: This Agreement is originally drafted in English. Any translations are provided for convenience only. In the event of any conflict between the English version and a translated version, the English version shall prevail.
20.1 By registering an account and using the platform, you consent to receive electronic communications from us. These communications include:
20.2 You agree that all agreements, notices, disclosures, and other communications that we provide to you electronically satisfy any legal requirement that such communications be in writing.
20.3 You may withdraw your consent to receive electronic marketing communications at any time by clicking the "unsubscribe" link in any marketing email or adjusting your preferences in the Console settings. However, you cannot opt out of receiving transactional or service-related emails while your account remains active.
If you have any questions, concerns, or requests regarding this Agreement or the platform, please contact us through the following channels:
Platform: AI Nexus (tokencnn.com) — China's AI, the World's Tool