## How to Use Simulation Mode

To open simulation mode, click the  tab in the [Interaction Panel](https://docs.cognigy.com/ai/agents/test/interaction-panel/overview), then select the scenario to run the simulation on. The simulation of the selected scenario starts with the following predefined settings:

- The number of simulation runs is 1 and can’t be changed.
- The simulation uses the [default LLM](https://docs.cognigy.com/ai/agents/develop/gen-ai-and-llms/other-operations#set-a-model-as-default) selected on the **Large Language Models** page.

## More Information

- [Simulator](https://docs.cognigy.com/ai/agents/test/simulator/overview)
- [Interaction Panel](https://docs.cognigy.com/ai/agents/test/interaction-panel/overview)