1. Subscription Services
- We offer users subscription plans at different tiers. Each plan may vary in terms of functional scope, available models, usage quotas, rate limits, concurrent capacity, context length, and tool access permissions. Specific details are subject to the information displayed on your subscription page. By registering and logging into your platform account, selecting a specific plan on the subscription page, and completing payment, you are deemed to have activated the relevant paid services and may use the associated benefits included in your subscription plan. The validity period of your paid services and the scope of included benefits are subject to the Service Rules outlined on the subscription page and other applicable documentation. Please thoroughly review the relevant Service Rules before purchase and retain all relevant proof of purchase.
- You acknowledge and agree that we may adjust the name of subscription plan, price, billing method, feature scope, supported models/applications, quota rules, rate limits, or other service content due to reasons including product evolution, model upgrades, system maintenance, commercial arrangements, cost changes, third-party policy adjustments, security risk control, or compliance requirements. We will notify users of such adjustments through announcements, notices, or other reasonable means. Where such adjustments may have a significant adverse impact on pricing, core functionality, or quotas, they shall generally take effect from the subsequent billing cycle, except where immediate adjustment is required by laws, regulations, regulatory requirements, or security measures. Your continued use or not cancel the subscription plan after the adjustment takes effect shall be deemed as your acceptance of the revised Service Rules.
- You understand and agree that resource consumption, response speed, quota usage, and rate limits may vary across different models or capabilities. Should your subscribed plan begin supporting higher-tier models or advanced features, you may experience changes in response speed, accelerated quota consumption, or stricter restrictions. Specific details shall be subject to the relevant rules and explanations displayed on the platform at that time. We will make reasonable efforts to explain such differences on relevant pages. You may choose to continue using the Services, adjust your usage methods, or change your subscription plan based on your needs.
- In certain scenarios, we support users upgrading or switching their subscription plans based on their existing subscription. The types of updatable subscription plan, fees and price, as well as the rules for handling benefits under the original plan, shall be subject to the explanations, operational guidelines, or relevant documentation provided on the platform pages at that time.
2. Billing, Subscription Periods and Automatic Renewal
- Paid services are typically billed monthly, annually, or at other intervals, as specified on the subscription page. You shall pay the applicable fees according to the package price, currency, tax rules, and billing cycle displayed on the subscription page.
- Before the subscription period expires, you may request renewal through the designated interface. If the subscription plan supports auto-renewal, we will automatically renew the next cycle at the applicable price for your selected plan unless you cancel renewal on the designated platform page before the current subscription period ends. Please review the relevant renewal rules before subscribing.
- We may limit the purchase quantity for each subscription plan based on purchase methods, user account status, risk control requirements, inventory arrangements, or other operational needs. The quantity available for purchase during any given period shall be subject to the quantity displayed on the platform page at that time or the quantity actually permitted by the system.
- You authorize the platform or its designated payment service provider to charge relevant fees according to the subscription plan price, billing cycle, etc., using your bound payment method. Should subscription or renewal fail due to insufficient balance, payment failure, account abnormalities, or payment channel restrictions, the platform may suspend or terminate the provision of corresponding paid services to you.
- Payments must be completed exclusively through our designated official payment channels. Using non-official payment channels may result in payment failure and potentially cause other losses or risks. Should this cause damage to you or any third party, you shall handle the matter independently and bear all corresponding liabilities. We shall not be liable to any of the forementioned losses or risks, and reserve the right to suspend or terminate your partial or full access privileges, freeze your account balance, temporarily or permanently ban your account, and/or restrict or prohibit your use of any paid services.
- Unless otherwise required by applicable law, explicitly promised by the Company, or agreed upon by both parties, subscription fees paid are non-refundable. Billing cycles that have commenced will not be prorated for refunds due to non-use, reduced usage frequency, or early cancellation. Any unused benefits within the validity period will automatically expire upon expiration.
3. Use of the Services
- You may subscribe to paid services through your platform account or other methods we permit. Subscribed paid services are strictly for the personal use of the account that activated and subscribed to such services. You must safeguard your account credentials, passwords, API keys, and other authentication information. Unless expressly permitted by us, you may not sell, transfer, lend, lease, sublicense, reauthorize, or otherwise provide all or part of the subscribed paid services to any third party for use in any form. Otherwise, we reserve the right to take measures such as restricting, suspending, or terminating the service.
- You understand and acknowledge that to use the corresponding services within your subscription plan, you may be required to independently complete necessary operations such as installing, integrating, and configuring applications/plugins/tools, and to ensure the continuous availability of third-party applications/plugins/tools. Please refer to the documentation on the relevant platform pages for specific details.
- The paid services you subscribe to may only be used with access methods, operating environments, applications, tools, and plugins that we support or explicitly state as compatible (as specified on the platform pages). Without our explicit permission, you may not access, invoke, or use the subscribed paid services through unofficial, unauthorized, or unspecified tools, plugins, interfaces, or other methods. You shall bear sole responsibility for any service abnormalities, data loss, security risks, or other consequences arising therefrom.
- You and/or third parties shall bear sole responsibility for any consequences arising from the unavailability of the Services, financial losses, data breaches, operational errors, resource abuse, or other issues caused by your failure to safeguard your account, key exposure, device theft, or third-party applications/plugins/tools you install or integrate.
- You acknowledge and agree that your subscribed paid services may impose one or more technical restrictions, including but not limited to: usage quotas within a specified period; limits on the number of messages, requests, tokens, computational resources, or calls per minute, hour, five hours, day, week, or month; limits on total billing amounts; restrictions on concurrent tasks, concurrent Agents, or concurrent tool calls; constraints on context length, input size, output length, attachment size, or file quantity; and additional limitations for specific models, features, integration methods, or regions. Before subscribing to the Services, please carefully review the Service Rules on the relevant pages to understand the restrictions and decide independently whether to subscribe. When you reach applicable limits, we may take the following measures as appropriate: restrict new requests, delay processing, queue execution, suspend related features, switch to other models, reduce service levels, prompt you to upgrade your plan, or take other reasonable actions.
- You understand and agree that we may dynamically adjust rate limits and quota rules based on system load, resource usage, product strategy, security risk control, anti-abuse mechanisms, or compliance requirements. We will make every effort to ensure your legitimate rights and interests remain unaffected. You may not circumvent the aforementioned restrictions through scripts, proxies, token rotation, bulk registration, reverse engineering of interfaces, abnormal concurrency, queue bypassing, or other improper means.
- When using the Services, you shall comply with the relevant provisions of the StepFun Open Platform’s Terms of Services. You shall not engage in any activities that violate laws, regulations, regulatory requirements, industry norms, or public order and good morals.
4. Suspension, Interruption, and Termination
We may suspend, interrupt, restrict, or terminate all or part of your subscription services under any of the following circumstances:- If you breach this Agreement, Service Rules, other platform agreements, or applicable laws and regulations;
- If your use of the Services could trigger security, risk control, anti-fraud, or anti-abuse mechanisms;
- If you have outstanding fees, failed payments, refund disputes, chargebacks, or account anomalies;
- If the platform undergoes system maintenance, upgrades, migration, fault repair, or resource adjustments;
- If required by laws, regulations, or requests from judicial or administrative authorities;
- Other circumstances where the platform reasonably deems necessary.
- After service suspension, interruption, or termination, you may lose access to related features, historical records, configurations, task statuses, etc. We shall not be liable for such consequences, except as otherwise provided by law.
- You may cancel subscriptions via the designated platform page. Cancellation typically affects only the next billing cycle; services already active within the current cycle shall not automatically terminate as a result.