# Attachment An asset provided to the model. ``` struct Attachment ``` ## Overview Use `Attachment` to include media such as images alongside text in your prompts and instructions. ```swift let response = try await session.respond { "Describe this image:" Attachment(image) } ``` Use the [`label(_:)`](/documentation/FoundationModels/Attachment/label(_:)) method to assign a label to an attachment. Labels help the model identify specific attachments when making tool calls. ```swift Prompt { "Compare these two images:" Attachment(firstImage) .label("image-0") Attachment(secondImage) .label("image-1") } ``` ## Topics ### Creating an attachment instance [`init ( _ : orientation :)`](/documentation/FoundationModels/Attachment/init(_:orientation:)) Creates an attachment from a Core Graphics image. [`init(imageURL:orientation:)`](/documentation/FoundationModels/Attachment/init(imageURL:orientation:)) Creates an attachment from a file URL pointing to an image. ### Assigning a label [`label(_:)`](/documentation/FoundationModels/Attachment/label(_:)) Assigns a label to an attachment. ## Relationships ### Conforms To [`InstructionsRepresentable`](/documentation/FoundationModels/InstructionsRepresentable) [`PromptRepresentable`](/documentation/FoundationModels/PromptRepresentable) [`Escapable`](/documentation/Swift/Escapable) [`Copyable`](/documentation/Swift/Copyable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)