As Rasa is based on models, we are confused how we can handle multiple models in same Rasa instance.
You can’t have multiple models simultaneously in the same instance. You could load and unload models but this wouldn’t perform well.
Can we create separate models for each app in same Rasa instance and parse the model according to each chatbot.
No
And also can we customize the model name while creating it using the model/train API.
It doesn’t look like this is an option. You can rename it after training or add this as a feature.