---
title: NDArray.ScalarType.int4
framework: coreai
role: symbol
role_heading: Case
path: coreai/ndarray/scalartype-swift.enum/int4
---

# NDArray.ScalarType.int4

A 4-bit signed integer.

## Declaration

```swift
case int4
```

## Discussion

Discussion Four-bit signed integers can represent values in the range [-8, 7]. Widely used in model quantization for efficient storage and computation.

## See Also

### Defining sub-byte signed integer types

- [NDArray.ScalarType.int2](coreai/ndarray/scalartype-swift.enum/int2.md)
- [NDArray.ScalarType.int3](coreai/ndarray/scalartype-swift.enum/int3.md)
- [NDArray.ScalarType.int5](coreai/ndarray/scalartype-swift.enum/int5.md)
- [NDArray.ScalarType.int6](coreai/ndarray/scalartype-swift.enum/int6.md)
- [NDArray.ScalarType.int7](coreai/ndarray/scalartype-swift.enum/int7.md)