Deepgram Aura alternative for text to speech
Add Lightning TTS to the application you already run. Keep control of transcription and business logic while choosing your speech model, voice, language and delivery format.
Can Smallest replace Deepgram Aura without replacing my whole stack?
Yes. Smallest Lightning can replace the text-to-speech layer in a Deepgram-based application while you retain its transcription and business logic. Compare the required voices, languages and audio formats before changing the integration. Deepgram Aura may remain a better fit if its current voices and playback contract already meet your needs. A complete voice-agent migration is a separate decision.
Smallest Lightning vs Deepgram Aura: TTS features
This comparison covers speech output: voices, languages, transport and audio formats. Deepgram transcription and its Voice Agent API are separate products with their own requirements.
| Smallest AI | Deepgram | |
|---|---|---|
| Speech product | Lightning TTS | Aura TTS |
| Streaming | HTTP, SSE and WebSocket | REST and WebSocket |
| Voice selection | Standard and Pro voice catalogs | Aura catalog with locale and accent details |
| Playback settings | Output format and sample rate | Encoding, container, bitrate and sample rate |
| Complete agents | Separate Atoms platform | Separate Voice Agent API |
Replace the TTS layer with Lightning
Use Lightning in an existing support voice application
Keep your current transcription and response logic while adding a Lightning speech adapter. A support reply can travel through the same application workflow with a new voice and audio configuration.
1
Receive the transcript through your current transcription layer.
2
Generate the support answer through your existing business logic.
3
Send the answer to Lightning and play it in the same interface.
Smallest TTS pricing for Deepgram Aura users
Keep your existing transcription bill separate from the new TTS estimate. This makes the cost of a speech-only change visible before deciding whether to replace more of the application.
Lightning v3.1
Approximately $0.175 per 10,000 characters on the published pay-as-you-go model plan.
Lightning v3.1 Pro
Approximately $0.195 per 10,000 characters on the published pay-as-you-go model plan.
Your complete application
Exercise short replies, long answers and stopped playback in the real interface. Roll out after the audio path behaves correctly.
Should you choose Smallest or Deepgram Aura?
Choose Smallest AI when
Choose Lightning when you want a new TTS layer while retaining your application’s transcription and business logic. Configure the voice and audio output for your existing interface.
Choose
Deepgram
When
When Deepgram Aura may be the better fit
Retain Aura when its voices, language support and audio contract already serve your audience well, especially if keeping the existing integration is a priority. A new speech layer should solve a specific product need.
Frequently asked questions
Can Smallest replace Aura without replacing Deepgram transcription?
Does Lightning support streaming speech?
Which audio formats can Lightning return?
Is this a comparison with every Deepgram speech model?
Can Smallest also operate the whole voice agent?