# Chat Interface
The Chat Interface is where you run conversations with your selected model and control all chat-specific settings. Each chat maintains its own configuration, including model parameters, tools, and system prompts.
### Model Parameters
The **Model Parameters** section lets you adjust settings such as temperature. These parameters apply only to the current chat and help shape how the model generates responses.
### Tools
If the selected model supports tools, they appear in the **Tools** section of Chat Settings. You can turn individual tools on or off (such as search or code execution), or enable all compatible tools at once. Tools that the model does not support will appear disabled.
### System Prompts
System prompts let you apply reusable instructions or personas to a chat.
* To add one, open **Chat Settings → System prompts → Add**.
* After creation, the prompt appears in your list and can be toggled on or off per chat suing the star button beside **Chat Settings**.
* Multiple system prompts can be active at the same time.
System prompts are scoped to the conversation, allowing different chats to have different instructions and configurations.
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