Privacy Policy

Last updated: September 5, 2025

Introduction

Welcome to Hunyuan 3D, an AI-powered 3D model generator that transforms images into high-quality 3D models using advanced AI technology. This Privacy Policy describes how we collect, use, and protect your information when you use our service at hunyuan-3d.org.

Data Collection

We collect limited data to provide and improve our service:

Usage Data

• What we collect: Information about how you interact with our service, including features used, session duration, and general usage patterns.
• Why we collect it: To understand how our service is used and to improve the user experience.

Device Information

• What we collect: Basic device and browser information such as device type, operating system, and browser version.
• Why we collect it: To ensure our service works properly across different devices and browsers.

Cookies

• What we collect: Small data files that help remember your preferences and improve your experience.
• Why we collect it: To enhance functionality and provide a personalized experience.

Important: We do not collect personally identifiable information (PII) such as names, email addresses, or contact details unless you explicitly provide them for support purposes.

Use of Data

We use the collected data solely to:

• Analyze and improve our service performance
• Understand user behavior patterns to enhance features
• Ensure technical compatibility across devices
• Provide customer support when requested

Data Sharing

We do not sell your data. We do not share your personal information with third parties, except:

• When required by law or legal process
• To protect our rights or the safety of our users
• With service providers who help us operate our service (under strict confidentiality agreements)

AI Processing Notice

When you use our 3D model generation services, your uploaded images may be processed by third-party AI model providers (including fal.ai/hunyuan3d-v21). This processing is necessary to deliver our core 3D generation functionality. We ensure that this processing complies with privacy standards and contractual agreements with our AI service providers.

Important considerations about AI processing:

• Your input images are sent to third-party AI model APIs (such as fal.ai) for 3D model generation
• We work with reputable AI service providers who maintain their own privacy and security standards
• AI processing involves automated analysis of your images to generate 3D models
• We do not store your original images longer than necessary for service delivery
• Third-party AI providers may have their own data handling practices, which we cannot control
• Generated 3D models may be temporarily cached for performance purposes

By using our AI-powered 3D generation features, you consent to this processing and acknowledge that it involves third-party services independent from our direct control.

AI Model Attribution and Licensing

Hunyuan3D Model Usage: Our service utilizes the Hunyuan3D v21 AI model (fal.ai/hunyuan3d-v21), which is used under appropriate licensing terms. We comply with all applicable licensing requirements for AI model usage.

Content Usage Limitations: Generated 3D model usage rights vary by subscription plan:

• Basic Plan (Free): Personal and educational use only, with 30 sign-up bonus credits
• Plus Plan ($24.99/month): Full commercial usage rights included with 2000 monthly credits
• Pro Plan ($79.99/month): Full commercial usage rights included with 8000 monthly credits

Users must comply with applicable copyright laws and usage restrictions.

Model Source Transparency: We use third-party AI model APIs including Hunyuan3D v21 technology via fal.ai. The underlying AI models are developed by independent third parties and we operate as a service interface provider.

Your Rights

You have the right to:

• Access: Request information about the data we collect about you
• Correct: Request correction of any inaccurate data
• Delete: Request deletion of your data
• Opt-out: Disable cookies through your browser settings

Cookies Management

You can control cookies through your browser settings. Disabling cookies may affect the functionality of our service, but the core AI 3D model generation features will remain available.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will post any changes on this page and update the effective date. Continued use of our service after changes constitutes acceptance of the updated policy.

Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at Contact Support.

By using Hunyuan 3D, you agree to the collection and use of information in accordance with this Privacy Policy.