---
title: creatorDefinedKey
framework: coreml
role: symbol
role_heading: Type Property
path: coreml/mlmodelmetadatakey/creatordefinedkey
---

# creatorDefinedKey

Key for the model creator’s custom metadata.

## Declaration

```swift
static let creatorDefinedKey: MLModelMetadataKey
```

## Discussion

Discussion This key provides read-only access to custom metadata about the model, generated by the model’s author. The custom metadata is a dictionary of type [String: String]. This key corresponds to the userDefined field specified in the Core ML Model Specification.

## See Also

### Metadata keys

- [author](coreml/mlmodelmetadatakey/author.md)
- [description](coreml/mlmodelmetadatakey/description.md)
- [license](coreml/mlmodelmetadatakey/license.md)
- [versionString](coreml/mlmodelmetadatakey/versionstring.md)