To handle unrealistic generated outputs despite optimizing hyperparameters, try techniques like improving data quality, adding regularization, using better loss functions, and employing a more advanced model architecture.
Here is the code reference you can refer to:

In the above code, we are using the following:
- Improved Loss Functions: Use advanced loss functions like Wasserstein loss to guide the model towards realistic outputs.
- Regularization: Apply L2 regularization to prevent overfitting and unrealistic outputs.
- Data Augmentation: Augment the training data (e.g., flipping images) to improve diversity and avoid generating unrealistic samples.
Hence, by referring to the above, you can handle unrealistic generated outputs despite optimizing hyperparameters
Related Post: How do I handle prompt fatigue