Privacy Policy

Last Updated: November 25, 2025

Effective Date: November 25, 2025

IMPORTANT NOTICE: NATURE OF SERVICE AND DATA PROCESSING ROLE

R4 Chat is a technical intermediary service platform (API aggregation platform). In terms of data processing, we play the following roles:

For Account Data: R4 Chat is the data controller, responsible for your account information, payment information, etc.
For AI Interaction Data: R4 Chat acts only as a data transmission conduit, passing your inputs to third-party AI service providers. Third-party AI service providers are the actual processors of this data

When you use AI chat features, your input content is sent directly to third-party AI service providers (such as OpenAI, Anthropic, Google, DeepSeek, etc.). These providers process your data according to their respective privacy policies. R4 Chat is not responsible for third-party data processing activities.

1. Introduction

This privacy policy ("Policy") describes how R4 Chat ("we", "us") collects, uses, and shares personal information of users of this website, R4 Chat (the "Site"), as well as associated products and services (together, the "Services"), and applies to personal information that we collect through the Site and our Services as well as personal information you provide to us directly.

Please note that by using the Site or the Services, you accept the practices and policies described in this Policy and you consent that we will collect, use, and share your personal information as described below. If you do not agree to this Policy, please do not use the Site or the Services.

2. Personal Information We Collect

We collect personal information about you in a number of different ways:

2.1 Information You Provide to Us

When you use our Services, we collect personal information that you provide to us, including:

Account Information: Your name, email address, username and password
User Content: Your prompts to the R4 Chat product and other content you upload to the product, including PDF files, images and text files
Feedback: Information you provide to us, such as feedback on the product

2.2 Information We Collect Automatically

When you use our Services, we automatically collect certain information, including:

Device Information: Your computer or mobile device's operating system type and version number, manufacturer and model, browser type, screen resolution
Online Identifiers: Internet protocol (IP) address, unique identifier
Usage Information: The website you visited before browsing to our Site, access times, pages viewed, how long you spent on a page, and information about your use of and actions on our Site and Services
Location Information: General location information such as city, state or geographic area

2.3 Cookies and Similar Technologies

We use cookies and similar technologies to collect information. Cookies are small data files stored on your hard drive by a website. We may use both session Cookies (which expire once you close your web browser) and persistent Cookies (which stay on your computer until you delete them) to provide you with a more personal and interactive experience on our Site.

We use this information to:

Maintain your session
Remember your preferences
Analyze service usage
Make the Site and Services more useful to you

3. How We Use Your Personal Information

Subject to this Privacy Policy, our terms of use, and applicable terms and conditions of third-party applications, we may use information in the following ways:

3.1 To Provide the Services and Personalize Your Experience

We use personal information about you to provide the Services to you, including:

To help establish and verify your identity
For the purposes for which you specifically provided it to us
To provide you with effective customer service
To provide you with a personalized experience when you use the Site
To send you information about your relationship or transactions with us
To otherwise contact you with information that we believe will be of interest to you
To enhance or develop features, products or services

3.2 Research and Development

We may use your information for research and development purposes, including to analyze and improve the Services, our Sites and our business. As part of these activities, we may create aggregated, de-identified or other anonymous data from personal information we collect.

3.3 Training of AI Models

We do not use your personal information to train AI models.

3.4 Compliance and Protection

We may use any of the categories of personal information described above to:

Comply with applicable laws, lawful requests, and legal process, such as to respond to subpoenas or requests from government authorities
Protect our, your and others' rights, privacy, safety and property
Audit our internal processes for compliance with legal and contractual requirements and internal policies
Enforce the terms and conditions that govern the Site and our Services
Prevent, identify, investigate and deter fraudulent, harmful, unauthorized, unethical or illegal activity

We may disclose all categories of personal information described above with the following categories of third parties:

4.1 Third-Party AI Service Providers (Independent Data Controllers)

IMPORTANT: When you use AI chat features, your input data is transmitted directly to third-party AI service providers. These providers, as independent data controllers, process your data independently according to their respective privacy policies. R4 Chat acts only as a technical transmission conduit in this process and does not control, store (except for conversation history features), or process this interaction data.

The third-party AI service providers you may choose to use and their privacy policies are as follows:

OpenAI (OpenAI OpCo, LLC) - USA When you choose to use OpenAI models, your input is sent directly to OpenAI servers. OpenAI processes your data as an independent data controller. Privacy Policy: https://openai.com/policies/privacy-policy/
Anthropic Claude (Anthropic, PBC) - USA When you choose to use Claude models, your input is sent directly to Anthropic servers. Anthropic processes your data as an independent data controller. Privacy Policy: https://www.anthropic.com/legal/privacy
Google Gemini (Google, Inc.) - USA When you choose to use Gemini models, your input is sent directly to Google servers. Google processes your data as an independent data controller. Privacy Policy: https://policies.google.com/privacy
DeepSeek - China When you choose to use DeepSeek models, your input is sent directly to DeepSeek servers. DeepSeek processes your data as an independent data controller. Privacy Policy: https://cdn.deepseek.com/policies/zh-CN/deepseek-privacy-policy.html
OpenRouter (OpenRouter, Inc.) - USA When you choose to access models through OpenRouter, your input is sent to OpenRouter servers. OpenRouter processes your data as an independent data controller. Privacy Policy: https://openrouter.ai/privacy

You are responsible for reading and understanding the privacy policy of any third-party AI service before using it. R4 Chat assumes no responsibility for the data processing activities of third-party AI service providers.

You understand and agree that:

Active Sharing: When you use AI chat features, you actively choose to send data to third-party AI service providers
Choice: You may choose not to use specific AI service providers, thereby avoiding sharing data with that provider
Risk Assumption: Your decision to share data with third-party AI service providers and its consequences are your sole responsibility
No Recourse: Once data is sent to a third-party AI service provider, R4 Chat cannot control the subsequent processing of that data, and you may not hold R4 Chat liable for the data processing activities of third parties

4.3 Corporate Restructuring

We may share some or all of your personal information in connection with or during negotiation of any merger, financing, acquisition or dissolution, transaction or proceeding involving the sale, transfer, divestiture, or disclosure of all or a portion of our business or assets.

4.4 Other Disclosures

We may disclose your personal information if we believe in good faith that such disclosure is necessary for any of the following:

In connection with any legal investigation
To comply with relevant laws or to respond to subpoenas or warrants served on us
To protect or defend the rights or property of R4 Chat or users of the Services
To investigate or assist in preventing any violation or potential violation of the law

We do not sell your personal information.

5. Your Rights

Depending on your location, you may have certain rights regarding your personal information. For Chinese citizens, specific rights are provided under the Personal Information Protection Law of the People's Republic of China and the Interim Measures for the Management of Generative Artificial Intelligence Services. For all users, depending on applicable law, you may have the following rights:

5.1 Basic Rights

Right to Access: You have the right to access your personal information
Right to Copy: You have the right to copy your personal information
Right to Correct: You have the right to correct inaccurate or incomplete personal information
Right to Supplement: You have the right to supplement your personal information
Right to Delete: You have the right to request deletion of your personal information
Right to Withdraw Consent: You have the right to withdraw consent you have previously given

5.2 Details on the Right to Delete

When you request deletion of personal information:

5.2.1 Scope of Deletion

Data Type	Deletable	Notes
Account Information	✅ Yes	Deleted upon account termination
Chat History	✅ Yes	You can delete at any time in settings
Uploaded Files	✅ Yes	You can delete at any time in settings
Backup Data	✅ Yes	Will be cleared from backups within 30 days after main data deletion
Legally Required Retention	⚠️ Limited	Data required by law will be deleted after retention period expires
Data Sent to Third Parties	❌ Cannot be directly deleted	Please contact the respective third-party AI provider

5.2.2 Deletion Timeline

Upon receiving a valid deletion request, we will complete deletion within 15 business days
Backup data will be cleared within 30 days
You will be notified by email once deletion is complete

5.2.3 Cases Where Deletion May Not Be Possible

We may be unable or unwilling to delete your personal information in the following circumstances:

Directly related to national security or defense security
Legal retention period has not expired
Deletion would harm the legitimate rights of others
Evidence needs to be retained for your breach or illegal activities

5.3 Automated Decision-Making Disclosure

In accordance with Article 24 of the Personal Information Protection Law of the People's Republic of China (for Chinese citizens), we hereby disclose automated decision-making that may affect your rights:

Automated Processing We May Use:

Processing Type	Purpose	Impact on You
Risk Assessment	Prevent fraud and abuse	May limit suspicious account features
Usage Monitoring	Prevent abuse and overuse	May trigger rate limiting or service suspension
Anomaly Detection	Protect account security	May require additional verification

Your Rights:

You have the right to request an explanation of the logic behind automated decisions
You have the right to refuse decisions that have significant impact on you made solely through automated means
If you object to an automated decision, you may apply for manual review via support@r4.chat

To exercise these rights, contact us at privacy@r4.chat. We will promptly accept and process your request in accordance with applicable law.

6. Data Retention

In accordance with applicable regulations, including the Interim Measures for the Management of Generative Artificial Intelligence Services for Chinese citizens, we do not illegally retain users' input information and usage records.

We only retain your personal information for as long as necessary to fulfill the purposes described in this Privacy Policy, or as required or permitted by law. When we no longer need to use your personal information, we will delete it from our systems and records or take steps to anonymize it.

You can request deletion of your account and associated data at any time.

7. Your Choices

7.1 Email Communications

We may periodically send you free newsletters and e-mails that directly promote the use of our Site or Services. When you receive newsletters or promotional communications from us, you may indicate a preference to stop receiving further communications from us and you will have the opportunity to "opt-out" by following the unsubscribe instructions provided in the e-mail you receive or by contacting us directly. Despite your indicated e-mail preferences, we may send you Service-related communications, including notices of any updates to our Privacy Policy or terms of service.

7.2 Cookies

If you decide at any time that you no longer wish to accept cookies from our Site, then you can instruct your browser, by changing its settings, to stop accepting cookies or to prompt you before accepting a cookie from the websites you visit. Consult your browser's technical information. If you do not accept cookies, however, you may not be able to use all portions of the Site or all functionality of the Services.

8. Cross-Border Data Transfers

8.1 Cross-Border Transfer Description

To provide you with AI chat services, we need to transfer some of your personal information overseas for processing. These transfers primarily occur in the following situations:

AI Model Processing: When you use AI chat features, your input content is sent to the respective AI provider's servers for processing, which may be located in the United States or other countries/regions.
Cloud Service Hosting: Some of our infrastructure services may be hosted by cloud service providers located in different countries/regions.

8.2 Types of Data Transferred

Personal information that may be transferred overseas includes:

Text content you input in chats
Files you upload (such as images, PDFs, etc.)
Your IP address and device information

8.3 Protection Measures

We take reasonable measures to ensure that your personal information is adequately protected during transfer, including:

Entering into agreements containing data protection clauses with third-party service providers
Using TLS/SSL encryption technology to protect data in transit
Transferring only the minimum data necessary to provide the Services
Requiring overseas recipients to protect your personal information to standards no less than those in this Policy

In accordance with Article 39 of the Personal Information Protection Law of the People's Republic of China, we hereby separately inform you and seek your consent regarding cross-border data transfers.

You understand and confirm that:

Your personal information will be transferred to overseas AI service providers for processing
The names of overseas recipients are listed in Section 4.1 of this Policy (AI Model Providers)
Contact information of overseas recipients can be obtained through their respective privacy policies
You may withdraw this consent at any time, but withdrawal does not affect the lawfulness of data processing activities conducted based on your consent prior to withdrawal

If you do not consent to cross-border data transfers, please do not use the AI chat features of the Services. You may still use other features of the Services that do not involve cross-border transfers (if any).

9. Security

R4 Chat is committed to protecting the security of your personal information. We use a variety of security technologies and procedures to help protect your personal information from unauthorized access, use, or disclosure. No method of transmission over the internet, or method of electronic storage, is 100% secure, however. Therefore, while we use reasonable efforts to protect your personal information, we cannot guarantee its absolute security.

Our security measures include:

Data in transit: TLS/SSL encryption
Data at rest: AES-256 encryption
Passwords: Secure hashing algorithms
Access control: Strict permission management

9.1 Data Security Incident Response

In the event of a personal information breach, tampering, or loss, we will:

Immediately activate emergency response: Take remedial measures to prevent further damage
Timely notification: Report to relevant regulatory authorities as required by law, and notify affected users within a reasonable time via email, in-app notifications, or other means
Notification content: Including the basic situation of the security incident, potential impact, measures we have taken, measures users can take to reduce risks, and remedial measures for users

If it is difficult to notify users individually, we will issue a public announcement through reasonable and effective means.

10. Sensitive Personal Information

10.1 Sensitive Information We May Process

In providing the Services, we may process the following sensitive personal information:

Biometric information: If you upload images containing faces, such images may be processed by AI models
Location information: Approximate geographic location inferred from IP address

10.2 Principles for Processing Sensitive Information

For sensitive personal information, we follow these principles:

Process only when necessary to provide the Services
Inform you of the necessity and impact through this Policy before processing
Implement strict protection measures

10.3 Your Attention

Please do not actively submit or upload content containing the following information when using the Services:

ID card numbers, passport numbers, or other identification document numbers
Bank card numbers, financial account information
Medical and health information
Other personal information you consider sensitive

If you actively submit such information, it is deemed that you consent to our processing of such information to the extent necessary to provide the Services.

If you are a resident of the European Union/European Economic Area, the following additional terms apply to you:

11.1 Legal Basis for Processing

Under Article 6 of the GDPR, our legal bases for processing your personal data are as follows:

Processing Purpose	Legal Basis
Service Provision	Contract Performance (Art. 6(1)(b))
Account Security	Legitimate Interests (Art. 6(1)(f))
Marketing Communications	Consent (Art. 6(1)(a))
Legal Compliance	Legal Obligation (Art. 6(1)(c))
Cross-Border Transfer	Explicit Consent (Art. 49(1)(a))

11.2 Additional Rights

As an EU resident, you also have the following rights:

Right to Data Portability: You have the right to receive your personal data in a structured, commonly used, and machine-readable format
Right to Restriction of Processing: In certain circumstances, you have the right to request restriction of processing of your data
Right to Object: You have the right to object to processing based on legitimate interests
Right to Lodge a Complaint: You have the right to lodge a complaint with a supervisory authority in your country

11.3 Data Transfers

When your data is transferred outside the EU/EEA, we rely on Article 49(1)(a) of the GDPR (your explicit consent) for such transfers. By using services involving overseas AI providers, you are deemed to have given such consent.

11.4 Contact

For GDPR-related inquiries, please contact: privacy@r4.chat

12. Minors Protection

Our Site and the Services are not intended for users under 18 years of age, and you must be at least 18 years old to have our permission to use the Site or the Services. We do not knowingly collect, use, or disclose personally identifiable information from persons under 18. If you believe that we have collected, used, or disclosed personally identifiable information of a person under the age of 18, please contact us using the contact information below so that we can take appropriate action.

13. Updates to This Privacy Policy

We reserve the right to change this Privacy Policy at any time. If we make any material changes to this Privacy Policy, we will post the revised version to our website and update the "Last Updated" date at the top of this Privacy Policy. Except as otherwise indicated, any changes will become effective when we post the revised Privacy Policy on our website.

14. Contact Us

Our contact information is as follows:

Email: privacy@r4.chat

If you have any questions about this Privacy Policy, or wish to exercise your personal information rights, please contact us through the above method.