Function Calling with GPT-4
As a basic example, let's say we asked the model to check the weather in a given location.
The LLM alone would not be able to respond to this request because it has been trained on a dataset with a cutoff point. The way to solve this is to combine the LLM with an external tool. You can leverage the function calling capabilities of the model to determine an external function to call along with its arguments and then have it return a final response. Below is a simple example of how you can achieve this using the OpenAI APIs.
Let's say a user is asking the following question to the model:
What is the weather like in London?
To handle this request using function calling, the first step is to define a weather function or set of functions that you will be passing as part of the OpenAI API request:
tools = [
{
"type": "function",
"function": {
"name": "get_current_weather",
"description": "Get the current weather in a given location",
"parameters": {
"type": "object",
"properties": {
"location": {
"type": "string",
"description": "The city and state, e.g. San Francisco, CA",
},
"unit": {
"type": "string",
"enum": ["celsius", "fahrenheit"]},
},
"required": ["location"],
},
},
}
]
The get_current_weather function returns the current weather in a given location. When you pass this function definition as part of the request, it doesn't actually executes a function, it just returns a JSON object containing the arguments needed to call the function. Here are some code snippets of how to achieve this.https://www.promptingguide.ai/applications/function_calling
As a basic example, let's say we asked the model to check the weather in a given location.
The LLM alone would not be able to respond to this request because it has been trained on a dataset with a cutoff point. The way to solve this is to combine the LLM with an external tool. You can leverage the function calling capabilities of the model to determine an external function to call along with its arguments and then have it return a final response. Below is a simple example of how you can achieve this using the OpenAI APIs.
Let's say a user is asking the following question to the model:
What is the weather like in London?
To handle this request using function calling, the first step is to define a weather function or set of functions that you will be passing as part of the OpenAI API request:
tools = [
{
"type": "function",
"function": {
"name": "get_current_weather",
"description": "Get the current weather in a given location",
"parameters": {
"type": "object",
"properties": {
"location": {
"type": "string",
"description": "The city and state, e.g. San Francisco, CA",
},
"unit": {
"type": "string",
"enum": ["celsius", "fahrenheit"]},
},
"required": ["location"],
},
},
}
]
The get_current_weather function returns the current weather in a given location. When you pass this function definition as part of the request, it doesn't actually executes a function, it just returns a JSON object containing the arguments needed to call the function. Here are some code snippets of how to achieve this.https://www.promptingguide.ai/applications/function_calling