tf.keras.ops.softplus

Softplus activation function.

tf.keras.ops.softplus(
    x
)

It is defined as f(x) = log(exp(x) + 1), where log is the natural logarithm and exp is the exponential function.

x Input tensor.

A tensor with the same shape as x.

Example:

x = keras.ops.convert_to_tensor([-0.555, 0.0, 0.555])
keras.ops.softplus(x)
array([0.45366603, 0.6931472, 1.008666], dtype=float32)