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Training a model is a fundamental step in the development of an assistant. It is essential because it allows the model to learn and adapt to specific tasks or domains, improving its performance and making it capable of providing meaningful and relevant responses to the end user inputs.

In Rasa Studio, there are two distinct methods for training a model. Studio users have the option to perform direct training of their assistant within the user interface, while technical users can alternatively train the same assistant on their local machine.

Training in Studio

Regardless of whether you are creating an NLU-based assistant, a purely LLM-based assistant, or a combination of both, the training process remains consistent. The only variable that differs is the time required for training.

For NLU-based assistants, the training process may significantly extend if there are numerous intents and stories to be processed. In contrast, LLM-based assistants typically exhibit shorter training durations.

Access training


Only a few users can train a model, you can learn more about which roles here.

Training is accessible from the NLU, CMS as well as Flow builder tab:


By clicking the "Train" button, Studio will compile the flows that have been created in the Flow Builder and present the trained model in the "Versions" tab for access and management.


If the NLU-based mode has been chosen, Studio will consolidate the NLU data stored in the Studio Content Management System (CMS) with the stories and other data files stored externally to Studio. This consolidation process results in the creation of a model, which is subsequently made accessible in the "Versions" tab for further utilization.

Training Status

The individual initiating the training process will encounter the following window:


Other roles will have visibility into the training progress but will not have the capability to halt the training process or initiate a new training session until the ongoing training is completed:


In the event of a successful model training, the following window will be displayed:


If the training process encounters an issue or fails, the following window will appear:


If the original trainer decides to stop the training process, the following window will appear:


You have the option to download the training log to gain insights into the reasons behind a training failure. Further information on this topic can be found in the provided resource.

Training log and debugging

The "Versions" tab provides an overview of the current assistant version as well as all previously trained versions of the assistant. By clicking on the ellipsis (three dots), you have the capability to download models and review training logs for further analysis.