> ## 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. # STTRequestResponseFormat Output format. "json" (default) returns \{ text, usage }. "verbose\_json" additionally returns task, language, duration, and segment-level timestamps; only supported by OpenAI-compatible providers. ## Example Usage ```python theme={null} from openrouter.components import STTRequestResponseFormat # Open enum: unrecognized values are captured as UnrecognizedStr value: STTRequestResponseFormat = "json" ``` ## Values This is an open enum. Unrecognized values will not fail type checks. * `"json"` * `"verbose_json"`