How to display category wise posts on seprarate template

You can create a taxonomy-models_categories.php file in your theme to use as a general template for displaying the posts (‘models’ in your case) of any selected term (‘model category’ in your case).

Now, if you wanted to display a different template for a specific term you could create a taxonomy-models_categories-termslug.php template, replacing ‘termslug’ with the actual slug of the term.

wphierarchy.com offers a great visualization of the WordPress template hierarchy and I often use it as reference. You can also checkout this link from the WordPress Developer Resources website.

I hope this helps!