You can set the boolean option 'classPrefixFiles' to false when generating models to prevent the full class name becoming your file name. However, you this option has no effect on generated base classes. So even if you have set 'classPrefixFiles' to false, the generated files with base classes still contain the base class prefix name in their file name.
I suggest having a 'baseClassPrefixFiles' options OR following the 'classPrefixFiles' option for base class file names as well.
This is how the generated file names ended up in my models folder (with 'baseClassPrefix' = 'Base_'; 'classPrefixFiles' = false; 'baseClassesDirectory' = 'Base' and 'baseClassPrefixFiles' = false):