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Documentation Index

Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt

Use this file to discover all available pages before exploring further.

Set via transcription_engine and model query parameters.

Engines

EngineDefault modelOther modelsNotes
Deepgramnova-3nova-2, fluxDefault engine. Broadest format support.
Telnyxopenai/whisper-tinyOn-network, lightweight
Googlelatest_longMultilingual, long-form
Azureazure/fastBroad language/accent coverage
xAIxai/grok-sttGrok STT for real-time transcription
AssemblyAIassemblyai/universal-streamingUniversal-Streaming for low-latency voice agents

Flux Model

Deepgram’s lowest-latency model with built-in end-of-turn detection. Designed for real-time voice agents. See Audio Formats for supported formats.