---
title: miniBatchSize
framework: coreml
role: symbol
role_heading: Type Property
path: coreml/mlparameterkey/minibatchsize
---

# miniBatchSize

The key you use to access the optimizer’s mini batch-size parameter.

## Declaration

```swift
class var miniBatchSize: MLParameterKey { get }
```

## Discussion

Discussion The value type for the miniBatchSize key is an Int64.

## See Also

### Accessing model update parameters

- [learningRate](coreml/mlparameterkey/learningrate.md)
- [momentum](coreml/mlparameterkey/momentum.md)
- [beta1](coreml/mlparameterkey/beta1.md)
- [beta2](coreml/mlparameterkey/beta2.md)
- [eps](coreml/mlparameterkey/eps.md)
- [epochs](coreml/mlparameterkey/epochs.md)
- [shuffle](coreml/mlparameterkey/shuffle.md)
- [seed](coreml/mlparameterkey/seed.md)