OpenAI's built-in tools are a collection of features within the OpenAI platform used to enhance model capabilities. These tools allow the model to access additional context and information from the web or files when generating responses. For example, by enabling the web search tool, the model can use the latest information on the web to generate responses. The main advantages of these tools are their ability to expand model capabilities, enabling it to handle more complex tasks and requirements. The OpenAI platform provides various tools such as web search, file search, computer usage, and function calls. The use of these tools depends on the provided prompt; the model will automatically decide whether to use the configured tools based on the prompt. Additionally, users can explicitly control or guide model behavior by setting tool selection parameters. These tools are very useful in scenarios requiring real-time data or specific file content, improving the model's practicality and flexibility.