Deepgram AI models

Deepgram Nova-3 is a fast, accurate speech-to-text model served through Telnyx's OpenAI-compatible transcription endpoint. It supports English variants (en, en-US, en-GB, en-AU, en-NZ, en-IN) and only accepts mp3 or wav audio files. Deepgram-specific options such as smart formatting, punctuation, diarization, utterance segmentation, and numeral conversion are configurable via model_config, and word-level timestamps with speaker labels are returned when enabled.