---
title: Test Your Agent
description: Use the Playground to chat with your agent, try different models and instructions, and check answers before you go live.
---

The **Playground** lets you chat with your agent the way a customer would, and adjust it as you go. Open your agent and select the **Playground** tab.

## Chat with your agent

Type questions your customers would ask and check the answers. Try questions your knowledge sources cover, and some they don't, to see how the agent responds.

Select **Reset Chat** to clear the conversation and start again.

## Adjust the model and instructions

The settings panel next to the chat lets you change:

- **Model**: the AI model that powers the agent. See [AI Models](/docs/agents/ai-models).
- **System prompt**: the agent's instructions. Select **Use a template...** to start from an example.

Select **Save** to apply your changes to the agent.

:::note
Playground conversations use credits, just like conversations on your live channels. See [Understanding Credits](/docs/billing/understanding-credits).
:::

## Improve answers

If an answer is wrong or missing:

- Add the missing information as a [knowledge source](/docs/knowledge), or as a [question and answer](/docs/knowledge/questions-and-answers) for an exact reply.
- Refine the [instructions](/docs/agents/instructions) to change tone, focus, or what the agent should avoid.
- [Retrain](/docs/knowledge/retraining) a source if the content has changed.