> ## 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 ```typescript theme={null} import { STTRequestResponseFormat } from "@openrouter/sdk/models"; let value: STTRequestResponseFormat = "json"; // Open enum: unrecognized values are captured as Unrecognized ``` ## Values ```typescript theme={null} "json" | "verbose_json" | Unrecognized ```