Everytime when I train rasa with new data it is building new model and every model is of 40 to 50 MB of space it takes. Can I delete old models and use the current model? what happen If I delete old model will it affect the prediction or cause any kind of errors?
I did delete the previous models and it just works fine. I think when you improve your training data and train Rasa, then the previous models are not going to be uses anymore. only the latest model would be activated. It’s my understanding though. 
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I mean it’s possible that rasa can learn from other rasa models , but unlikely since rasa x interface indicates that only a model is active at a time . well in machine learning it is a possibility to learn from other copies but i think there is no ‘need’ for that in rasa i suppose , since the new model is better than the old one
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