different model results beteewn keras/tensorflow models and tensorflowjs model

I have compared the results between keras/pb and tensorflowjs , the js model is always good, but the tensorflow pb model and keras h5 model produce much worse result. Every model I have all tried as i can. Is there something wrong with the model?

Start by reproducing the reported comparison between the Keras H5, TensorFlow PB, and TensorFlow.js models. The issue provides no files or tests, so first identify the model inputs and conversion steps used for each format, then determine whether their outputs differ and document the cause of the discrepancy.

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