> ## 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. # ResponseFormat Response format configuration ## Supported Types ### `components.ChatFormatGrammarConfig` ```python theme={null} value: components.ChatFormatGrammarConfig = /* values here */ ``` ### `components.ChatFormatJSONObjectConfig` ```python theme={null} value: components.ChatFormatJSONObjectConfig = /* values here */ ``` ### `components.ChatFormatJSONSchemaConfig` ```python theme={null} value: components.ChatFormatJSONSchemaConfig = /* values here */ ``` ### `components.ChatFormatPythonConfig` ```python theme={null} value: components.ChatFormatPythonConfig = /* values here */ ``` ### `components.ChatFormatTextConfig` ```python theme={null} value: components.ChatFormatTextConfig = /* values here */ ```