Test from the Playground - Docs by LangChain

The Playground provides an interface for iterating on and testing prompts and model configurations. Test a prompt or model configuration over a series of inputs to see how well it scores across different contexts or scenarios, without writing any code. In the Playground you can:

Change the model being used.
Change the prompt template being used.
Change the output schema.
Change the tools available.
Enter the input variables to run through the prompt template.
Run the prompt through the model and observe the outputs.

To test a prompt or model configuration over a dataset and score the results, run an evaluation from the Playground.

Use the Chat in the Playground to optimize prompts, generate tools, and create output schemas with AI assistance.

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