> ## 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. # AnthropicMessageOutputConfig ## Fields | Field | Type | Required | Description | Example | | -------- | ----------------------------------------------------------------------------------------------- | -------------------- | ----------- | ------- | | `effort` | [OptionalNullable\[components.AnthropicOutputEffort\]](../components/anthropicoutputeffort.mdx) | :heavy\_minus\_sign: | N/A | high |