As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/deepgram-aura-2/

# Deepgram Aura-2

Deepgram, Aura family. Status: current. Type: speech and audio. Released: 2025-04-15.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Deepgram API | `aura-2-thalia-en` | https://api.deepgram.com/v1/speak?model=aura-2-thalia-en | https://developers.deepgram.com/docs/tts-models |

## Pricing

- Per 1K characters: $0.03
- Unit as published: per 1K characters PAYG ($0.027 Growth); Aura-1 $0.015
- Source: https://deepgram.com/pricing
- Last checked: 2026-09-29

## Specs

- Input: text
- Output: audio
- Context window: not published
- Max output: not published
- Open weights: no
- Licence: proprietary

## Where it stands

- Newer speech and audio models in the registry since its release: 96. The 5 newest:
  - NVIDIA Nemotron 3.5 Transcribe (30B-A4B) (2026-10-28) https://postcutoff.com/m/nemotron-3-5-transcribe/
  - Hy-SimulMT-30B-A3B (2026-10-22) https://postcutoff.com/m/hy-simulmt-30b-a3b/
  - Eleven Realtime v1 Max / Mini (2026-10-20) https://postcutoff.com/m/eleven-realtime-v1-max/
  - Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3) (2026-10-20) https://postcutoff.com/m/voxtral-mini-transcribe-3/
  - Voxtral Small Transcribe 3 (2026-10-20) https://postcutoff.com/m/voxtral-small-transcribe-3/
- Before it from Deepgram: Deepgram Nova-3 (incl. Medical / Pharma) (2025-02-12) https://postcutoff.com/m/deepgram-nova-3/
- After it from Deepgram: Deepgram Flux (conversational STT, English + Multilingual) (2025-10-02) https://postcutoff.com/m/deepgram-flux/
- Closed weights; access is hosted only.

## What stands out

- Enterprise TTS with deployable runtime: Sub-200 ms TTFB, cloud/VPC/on-prem deployment; model id pattern aura-2-{voice}-{lang}. Source: https://deepgram.com/learn/introducing-aura-2-enterprise-text-to-speech
- 7 languages, EN/ES code-switching voices (found after launch): English, Spanish, German, French, Dutch, Italian, Japanese; several Spanish voices code-switch with English. Source: https://developers.deepgram.com/docs/tts-models

## Notes

For English voice agents Deepgram now recommends Flux TTS (deepgram-flux-tts); Aura-2 remains the multilingual option.

Sources: https://developers.deepgram.com/docs/tts-models , https://deepgram.com/pricing

Model page: https://postcutoff.com/m/deepgram-aura-2/