Privacy Policy
Last updated: 2026-07-05
Last updated: 2026-07-05
Operated by 4 YI AI INC (a Delaware corporation), 2810 North Church Street, Wilmington, DE 19802, USA.
Effective date: 2026-07-05 · Last updated: 2026-07-05
Language. This Privacy Policy is provided in English and Chinese. The English version is the controlling version; the Chinese translation is provided for convenience only. In the event of any conflict or inconsistency, the English version governs.
This Privacy Policy explains how 4YI collects, uses, discloses, and protects information when you access or use the 4YI platform, websites, applications, command-line tools, APIs, agents, and related services (collectively, the "Services").
The Services route requests to third-party model, infrastructure, payment, authentication, analytics, and support providers. Those providers may process information under their own terms and privacy practices.
We collect information you provide directly, including account details, organization information, billing details, support messages, prompts, uploaded files, API requests, agent configuration, and other content you submit to the Services.
We also collect information generated by your use of the Services, including device and browser information, IP address, authentication events, logs, model and agent usage, metering data, payment status, error reports, and security signals.
When you connect third-party services or sign in through an identity provider, we receive the information needed to authenticate you, maintain the connection, and provide the requested integration.
We use information to:
To fulfill your requests, we may transmit prompts, files, context, configuration, metadata, and related content to upstream model or infrastructure providers. These providers process the information to generate outputs, operate their services, enforce safety policies, and meet legal obligations.
You are responsible for ensuring that you have the rights and permissions needed to submit personal information, confidential information, or third-party content to the Services.
We may disclose information to service providers and subprocessors that help us operate the Services, including cloud hosting, model inference, payment processing, authentication, analytics, communications, security, and support vendors.
We may disclose information to organization administrators for workspaces they manage, to comply with law or legal process, to protect rights and safety, to investigate abuse, or in connection with a merger, financing, acquisition, reorganization, or sale of assets.
We do not sell personal information for money.
We retain information for as long as needed to provide the Services, comply with legal and accounting obligations, resolve disputes, enforce agreements, maintain security, and preserve audit history. Retention periods vary based on the type of information and the context in which it is used.
We use administrative, technical, and organizational safeguards designed to protect information. No system is perfectly secure, and we cannot guarantee that information will be completely protected from unauthorized access, loss, misuse, or alteration.
We operate from the United States and may process information in the United States and other countries where we or our service providers operate. These countries may have privacy laws different from those in your jurisdiction.
You may update certain account information in the Services. Depending on your location, you may have rights to access, correct, delete, export, or object to certain processing of personal information. To exercise these rights, contact us using the details below.
The Services are not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has provided personal information to us, contact us so we can take appropriate action.
We may update this Privacy Policy from time to time. If we make material changes, we will provide reasonable notice, such as by posting the updated policy with a new "Last updated" date or by notifying you through the Services.
Privacy questions or requests may be sent to 4yi@4yi.ai or to 4 YI AI INC, 2810 North Church Street, Wilmington, DE 19802, USA.