---
title: MLProgress.Metric
framework: createml
role: symbol
role_heading: Enumeration
path: createml/mlprogress/metric
---

# MLProgress.Metric

Metrics you use to evaluate a model’s performance during a training session.

## Declaration

```swift
enum Metric
```

## Topics

### Retrieving metric keys

- [MLProgress.Metric.accuracy](createml/mlprogress/metric/accuracy.md)
- [MLProgress.Metric.contentLoss](createml/mlprogress/metric/contentloss.md)
- [MLProgress.Metric.loss](createml/mlprogress/metric/loss.md)
- [MLProgress.Metric.maximumError](createml/mlprogress/metric/maximumerror.md)
- [MLProgress.Metric.rootMeanSquaredError](createml/mlprogress/metric/rootmeansquarederror.md)
- [MLProgress.Metric.styleLoss](createml/mlprogress/metric/styleloss.md)
- [MLProgress.Metric.stylizedImageURL](createml/mlprogress/metric/stylizedimageurl.md)
- [MLProgress.Metric.validationAccuracy](createml/mlprogress/metric/validationaccuracy.md)
- [MLProgress.Metric.validationLoss](createml/mlprogress/metric/validationloss.md)
- [MLProgress.Metric.validationMaximumError](createml/mlprogress/metric/validationmaximumerror.md)
- [MLProgress.Metric.validationRootMeanSquaredError](createml/mlprogress/metric/validationrootmeansquarederror.md)

## Relationships

### Conforms To

- [CaseIterable](swift/caseiterable.md)
- [Copyable](swift/copyable.md)
- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Assessing a checkpoint

- [metrics](createml/mlcheckpoint/metrics.md)