{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ChatCompletionRequest",
  "title": "ChatCompletionRequest",
  "properties": {
    "model": {
      "type": "string",
      "title": "Model",
      "description": "ID of the model to use"
    },
    "messages": {
      "items": {
        "anyOf": [
          {
            "$ref": "#/components/schemas/ChatCompletionDeveloperMessageParam"
          },
          {
            "$ref": "#/components/schemas/ChatCompletionSystemMessageParam"
          },
          {
            "$ref": "#/components/schemas/ChatCompletionUserMessageParam"
          },
          {
            "$ref": "#/components/schemas/ChatCompletionAssistantMessageParam"
          },
          {
            "$ref": "#/components/schemas/ChatCompletionToolMessageParam"
          },
          {
            "$ref": "#/components/schemas/ChatCompletionFunctionMessageParam"
          }
        ]
      },
      "type": "array",
      "title": "Messages",
      "description": "Messages comprising the conversation so far"
    },
    "temperature": {
      "anyOf": [
        {
          "type": "number",
          "maximum": 2,
          "minimum": 0
        },
        {
          "type": "null"
        }
      ],
      "title": "Temperature",
      "description": "Sampling temperature"
    },
    "top_p": {
      "anyOf": [
        {
          "type": "number",
          "maximum": 1,
          "minimum": 0
        },
        {
          "type": "null"
        }
      ],
      "title": "Top P",
      "description": "Nucleus sampling parameter"
    },
    "n": {
      "anyOf": [
        {
          "type": "integer",
          "minimum": 1
        },
        {
          "type": "null"
        }
      ],
      "title": "N",
      "description": "Number of chat completion choices to generate",
      "default": 1
    },
    "stream": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "title": "Stream",
      "description": "Whether to stream back partial progress",
      "default": false
    },
    "stop": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        {
          "type": "null"
        }
      ],
      "title": "Stop",
      "description": "Sequences where the API will stop generating"
    },
    "max_tokens": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "title": "Max Tokens",
      "description": "Maximum number of tokens to generate"
    },
    "presence_penalty": {
      "anyOf": [
        {
          "type": "number",
          "maximum": 2,
          "minimum": -2
        },
        {
          "type": "null"
        }
      ],
      "title": "Presence Penalty",
      "description": "Presence penalty"
    },
    "frequency_penalty": {
      "anyOf": [
        {
          "type": "number",
          "maximum": 2,
          "minimum": -2
        },
        {
          "type": "null"
        }
      ],
      "title": "Frequency Penalty",
      "description": "Frequency penalty"
    },
    "user": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "User",
      "description": "A unique identifier representing your end-user"
    }
  },
  "type": "object",
  "required": [
    "model",
    "messages"
  ],
  "description": "OpenAI-compatible chat completion request - exactly matching OpenAI's schema."
}