Deepgram · speech model

Aura-2 (English)

Name: Aura-2 (English)
Brand: Deepgram
SKU: deepgram/aura-2-en
Price: 0.06 USD
Availability: InStock

Aura-2 (English) is a speech model on the Overblast AI Gateway. Call it as deepgram/aura-2-en with one Overblast API key, paid from your AI credits.

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Prices are final: what a call costs in AI credits, in US dollars. As of 2 October 2026, from the live catalogue.

Price

Aura-2 (English): price
Price	$0.06 / 1,000 characters
Least a call costs	$0.01

What it does

Aura-2 (English): what it does
Does	Speaks text aloud
Voices	40: amalthea, andromeda, apollo, arcas, aries, asteria, athena, atlas, aurora, callista, cora, cordelia, delia, draco, electra, harmonia, helena, hera, hermes, hyperion, iris, janus, juno, jupiter, luna, mars, minerva, neptune, odysseus, ophelia, orion, orpheus, pandora, phoebe, pluto, saturn, thalia, theia, vesta, zeus
Default voice	luna
Audio formats	mp3, opus, aac, flac, wav, pcm
Language	EN
Longest input	2,000 characters

Where it runs

Aura-2 (English): where it runs
Regions	Runs globally; it cannot be pinned to the EU or the US yet
Zero data retention	Not applicable: speech calls cannot carry the requirement
Endpoint	`POST /v1/audio/speech`

Call it

curl https://ai.overblast.app/v1/audio/speech \
  -H "Authorization: Bearer $OVERBLAST_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepgram/aura-2-en",
    "input": "Hello from Overblast.",
    "voice": "luna",
    "response_format": "mp3"
  }' \
  --output speech.mp3

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