# CreateChatCompletionResponse Represents a chat completion response returned by model, based on the provided input. ## Fields | Field | Type | Required | Description | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `ID` | *string* | :heavy_check_mark: | A unique identifier for the chat completion. | | `Choices` | [][components.Choices](../../models/components/choices.md) | :heavy_check_mark: | A list of chat completion choices. Can be more than one if `n` is greater than 1. | | `Created` | *int64* | :heavy_check_mark: | The Unix timestamp (in seconds) of when the chat completion was created. | | `Model` | *string* | :heavy_check_mark: | The model used for the chat completion. | | `SystemFingerprint` | **string* | :heavy_minus_sign: | This fingerprint represents the backend configuration that the model runs with.

Can be used in conjunction with the `seed` request parameter to understand when backend changes have been made that might impact determinism.
| | `Object` | [components.Object](../../models/components/object.md) | :heavy_check_mark: | The object type, which is always `chat.completion`. | | `Usage` | [*components.CompletionUsage](../../models/components/completionusage.md) | :heavy_minus_sign: | Usage statistics for the completion request. |