Skip to main content Module realtime_session Copy item path Source AudioTranscription McpToolApprovalFilter Granular approval filter specifying which tools always/never require approval. McpToolFilter A filter object to specify which tools are allowed. NoiseReduction RealtimeAudioConfig RealtimeAudioConfigInput RealtimeAudioConfigOutput RealtimeSessionClientSecret RealtimeSessionCreateRequest RealtimeSessionCreateResponse RealtimeTranscriptionSessionAudio RealtimeTranscriptionSessionCreateRequest RealtimeTranscriptionSessionCreateResponse RealtimeTranscriptionSessionResponseAudio RealtimeTranscriptionSessionResponseAudioConfigInput RetentionRatioTruncation TracingConfig TruncationTokenLimits ConnectorId InfMarker The literal string "inf". Used by MaxOutputTokens::Inf MaxOutputTokens Integer token limit (1–4096) or "inf" for the maximum available tokens.
Defaults to "inf". McpAllowedTools List of allowed tool names or a filter object. McpToolApproval Approval policy for MCP tools: a filter object or "always"/"never". McpToolApprovalSetting Single approval policy for all tools. NoiseReductionType OutputModality RealtimeAudioFormats RealtimeIncludeOption RealtimeSessionType The type of session. Always "realtime" for the Realtime API. RealtimeToolChoiceConfig "none", "auto", "required", or a specific function/MCP tool reference.RealtimeToolsConfig RealtimeTracingConfig Either the string "auto" or a granular tracing configuration. RealtimeTranscriptionSessionTurnDetection Turn detection for transcription sessions. Only server_vad is currently supported. RealtimeTranscriptionSessionType The type of session. Always "transcription" for the Realtime API. RealtimeTruncation "auto", "disabled", or a retention ratio configuration.RetentionRatioTruncationType The retention ratio truncation type. Always "retention_ratio". SemanticVadEagerness Used only for semantic_vad mode. The eagerness of the model to respond.
low will wait longer for the user to continue speaking, high will respond more quickly.
auto is the default and is equivalent to medium. low, medium, and high have max timeouts of 8s, 4s, and 2s respectively. ToolChoiceOptions Controls which (if any) tool is called by the model. TracingMode The tracing mode. Always "auto". TruncationMode The truncation mode. TurnDetection Voice Built-in voice name (e.g. “alloy”, “ash”) or custom voice reference.