OptionalEagernessSemantic-VAD aggressiveness (OpenAI eagerness); ignored without a mapping.
OptionalMode'default' — let the provider profile decide (today's behavior).'serverVad' — classic silence-based server VAD.'semanticVad' — semantic end-of-utterance detection (OpenAI semantic_vad).'native' — this model's smartest documented turn/duplex mode, whatever the profile maps it
to; the forward slot for full-duplex reasoning voice models.OptionalSilenceServer-VAD trailing-silence duration in ms; ignored without a mapping.
OptionalThresholdServer-VAD activation threshold (0–1); ignored without a mapping.
MJ-normalized turn-detection settings for realtime (speech-to-speech) models. Every field is optional; absent fields contribute nothing. Provider profiles translate this vocabulary to their native wire block, and an unsupported value is diagnostic-logged and falls back to the profile default — a wrong inherited value degrades safely, it never rejects a session.