{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ChatCompletionResponse",
  "title": "ChatCompletionResponse",
  "type": "object",
  "properties": {
    "id": {
      "type": "string"
    },
    "object": {
      "type": "string"
    },
    "created": {
      "type": "integer"
    },
    "model": {
      "type": "string"
    },
    "choices": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer"
          },
          "message": {
            "type": "object",
            "properties": {
              "role": {
                "type": "string"
              },
              "content": {
                "type": "string"
              }
            }
          },
          "finish_reason": {
            "type": "string"
          }
        }
      }
    },
    "usage": {
      "type": "object",
      "properties": {
        "prompt_tokens": {
          "type": "integer"
        },
        "completion_tokens": {
          "type": "integer"
        },
        "total_tokens": {
          "type": "integer"
        }
      }
    },
    "x_fastly_cache": {
      "type": "object",
      "description": "Fastly semantic cache metadata",
      "properties": {
        "status": {
          "type": "string",
          "enum": [
            "HIT",
            "MISS",
            "SIMILAR"
          ]
        },
        "similarity": {
          "type": "number",
          "format": "float"
        }
      }
    }
  }
}