> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# OutputMessage

## Fields

| Field     | Type                                                                                                | Required             | Description                                                                                                                                                                                                                                                                                                                            |
| --------- | --------------------------------------------------------------------------------------------------- | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `content` | List\[[components.OutputMessageContent](../components/outputmessagecontent.mdx)]                    | :heavy\_check\_mark: | N/A                                                                                                                                                                                                                                                                                                                                    |
| `id`      | *str*                                                                                               | :heavy\_check\_mark: | N/A                                                                                                                                                                                                                                                                                                                                    |
| `phase`   | [OptionalNullable\[components.OutputMessagePhaseUnion\]](../components/outputmessagephaseunion.mdx) | :heavy\_minus\_sign: | The phase of an assistant message. Use `commentary` for an intermediate assistant message and `final_answer` for the final assistant message. For follow-up requests with models like `gpt-5.3-codex` and later, preserve and resend phase on all assistant messages. Omitting it can degrade performance. Not used for user messages. |
| `role`    | [components.OutputMessageRole](../components/outputmessagerole.mdx)                                 | :heavy\_check\_mark: | N/A                                                                                                                                                                                                                                                                                                                                    |
| `status`  | [Optional\[components.OutputMessageStatusUnion\]](../components/outputmessagestatusunion.mdx)       | :heavy\_minus\_sign: | N/A                                                                                                                                                                                                                                                                                                                                    |
| `type`    | [components.OutputMessageType](../components/outputmessagetype.mdx)                                 | :heavy\_check\_mark: | N/A                                                                                                                                                                                                                                                                                                                                    |