<!--
{
  "availability" : [
    "iOS: 18.0.0 -",
    "iPadOS: 18.0.0 -",
    "macCatalyst: 18.0.0 -",
    "macOS: 15.0.0 -",
    "tvOS: 18.0.0 -",
    "visionOS: 2.0.0 -",
    "watchOS: 11.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreML",
  "identifier" : "/documentation/CoreML/MLTensor/flattened()",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Core ML",
      "CoreML"
    ],
    "preciseIdentifier" : "s:6CoreML8MLTensorV9flattenedACyF"
  },
  "title" : "flattened()"
}
-->

# flattened()

Reshape to a one-dimensional tensor.

```
func flattened() -> MLTensor
```

## Discussion> Note: Flattening a zero-dimensional tensor will return a one-dimensional tensor.

For example:

```swift
let x = MLTensor(shape: [2, 2], scalars: [1, 2, 3, 4], scalarType: Float.self)
let y = x.flattened()
y.shape // is [4]
```

---

Copyright &copy; 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)