# 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` | *number* | :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.ObjectT](../../models/components/objectt.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. |