ONNX export failure: Unsupported operator `aten::pad_sequence` when exporting AIDC-AI/Ovis2-1B

by Singla071 - opened Sep 16

Sep 16

I'm trying to export the AIDC-AI/Ovis2-1B model to ONNX using torch.onnx.export , but I hit an unsupported operator error during export:
UnsupportedOperatorError: Exporting the operator 'aten::pad_sequence' to ONNX opset version 18 is not supported.

I tried multiple opset versions and the error persists.

Is Ovis2-1B intended to be exportable to ONNX? If so, is there a recommended export recipe?

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