keras-team/keras · error · ValueError

Unrecognized format={format}. Supported formats are: {list(a

Error message

Unrecognized format={format}. Supported formats are: {list(available_formats)}.

What it means

Error "Unrecognized format={format}. Supported formats are: {list(available_formats)}." thrown in keras-team/keras.

Source

Thrown at keras/src/models/model.py:940

        loaded_program = torch.export.load("path/to/model.pt2")
        predictions = loaded_program.module()(input_tensor)
        ```
        """
        from keras.src.export import export_litert
        from keras.src.export import export_onnx
        from keras.src.export import export_openvino
        from keras.src.export import export_saved_model
        from keras.src.export import export_torch

        available_formats = (
            "tf_saved_model",
            "onnx",
            "openvino",
            "litert",
            "torch",
        )
        if format not in available_formats:
            raise ValueError(
                f"Unrecognized format={format}. Supported formats are: "
                f"{list(available_formats)}."
            )

        # Check if LiteRT export is available (requires TensorFlow or
        # PyTorch backend)
        if format == "litert" and backend.backend() not in (
            "tensorflow",
            "torch",
        ):
            raise ValueError(
                "LiteRT export requires TensorFlow or PyTorch backend."
            )

        # Check if Torch export is available (requires PyTorch backend)
        if format == "torch" and backend.backend() != "torch":
            raise ValueError("Torch export requires PyTorch backend.")

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/models/model.py:940 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/1fb88bab0fe143cc. Report an issue: GitHub.