ChatGPT · Schema

FunctionDefinition

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Properties

Name Type Description
name string The name of the function to be called. Must be a-z, A-Z, 0-9, or contain underscores and dashes, with a maximum length of 64.
description string A description of what the function does, used by the model to choose when and how to call the function.
parameters object The parameters the functions accepts, described as a JSON Schema object. Omitting parameters defines a function with an empty parameter list.
strict boolean Whether to enable strict schema adherence when generating the function call. When set to true, the model will always follow the exact schema defined in the parameters field.
View JSON Schema on GitHub

JSON Schema

chatgpt-chat-completions-function-definition-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "FunctionDefinition",
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "The name of the function to be called. Must be a-z, A-Z,\n0-9, or contain underscores and dashes, with a maximum\nlength of 64.\n"
    },
    "description": {
      "type": "string",
      "description": "A description of what the function does, used by the model\nto choose when and how to call the function.\n"
    },
    "parameters": {
      "type": "object",
      "description": "The parameters the functions accepts, described as a JSON\nSchema object. Omitting parameters defines a function with\nan empty parameter list.\n"
    },
    "strict": {
      "type": "boolean",
      "description": "Whether to enable strict schema adherence when generating\nthe function call. When set to true, the model will always\nfollow the exact schema defined in the parameters field.\n"
    }
  }
}