keras-team/keras · error · ValueError

Invalid value received for argument `stddev`. Expected a flo

Error message

Invalid value received for argument `stddev`. Expected a float value between 0 and 1. Received: stddev={stddev}

What it means

Error "Invalid value received for argument `stddev`. Expected a float value between 0 and 1. Received: stddev={stddev}" thrown in keras-team/keras.

Source

Thrown at keras/src/layers/regularization/gaussian_noise.py:31

    Gaussian Noise (GS) is a natural choice as corruption process
    for real valued inputs.

    As it is a regularization layer, it is only active at training time.

    Args:
        stddev: Float, standard deviation of the noise distribution.
        seed: Integer, optional random seed to enable deterministic behavior.

    Call arguments:
        inputs: Input tensor (of any rank).
        training: Python boolean indicating whether the layer should behave in
            training mode (adding noise) or in inference mode (doing nothing).
    """

    def __init__(self, stddev, seed=None, **kwargs):
        super().__init__(**kwargs)
        if not 0 <= stddev <= 1:
            raise ValueError(
                f"Invalid value received for argument "
                "`stddev`. Expected a float value between 0 and 1. "
                f"Received: stddev={stddev}"
            )
        self.stddev = stddev
        self.seed = seed
        if stddev > 0:
            self.seed_generator = backend.random.SeedGenerator(seed)
        self.supports_masking = True

        self._build_at_init()

    def call(self, inputs, training=False):
        if training and self.stddev > 0:
            return inputs + backend.random.normal(
                shape=ops.shape(inputs),
                mean=0.0,
                stddev=self.stddev,

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/layers/regularization/gaussian_noise.py:31 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of keras-team/keras@7a34a03db6 (2026-08-25). Data as JSON: /api/errors/2b68c9986fdd5f0a. Report an issue: GitHub.