3D Model Link [model_3d_link] Field for Product Feed

Optional but Recommended for Interactive Product Display in ChatGPT

The model_3d_link attribute lets you include a link to a 3D model of your product.
3D assets allow users to explore your product interactively improving understanding, engagement, and confidence before purchase, especially within ChatGPT visual experiences.

When to use

Use this field when your product has a 3D model available online.
Ideal for categories like electronics, furniture, accessories, and home decor — where users benefit from viewing the product in 3D.

• [model_3d_link] should:
  • Point to a publicly accessible 3D model file
  • Prefer the .glb or .gltf format
  • Represent the exact product being sold
  • Avoid heavy files or restricted access links

Format

• Type: URL
• Specification: RFC 1738 compliant
• Accepted file formats: .glb, .gltf (preferred)
• Repeated field: No
• Schema.org property: Product.isAccessoryOrSparePartFor (closest equivalent)

Examples:

Minimum requirements

Note: The model file must be publicly accessible and compatible with 3D viewers.

• Use .glb or .gltf formats for best compatibility.
• Ensure the model accurately represents the product being sold.
• Host the model on a secure, publicly accessible server (HTTPS).
• Don’t use links requiring authentication or temporary access.
• Avoid overly large files (>100 MB) to prevent loading issues.

SEO / AI Tip

Adding a 3D model improves user trust and engagement in ChatGPT results.
Combine this field with optimized [image_link] and [video_link] attributes for a richer multimedia experience.

Official Source: ChatGPT Product Feed Specs