Deepgram Aura is built for low-latency, real-time voice agents and pairs naturally with Deepgram's speech-to-text. SpeechifyAI offers comparable sub-300ms streaming from $6 per 1M characters, below both Aura tiers, with far more voices and languages.
| Capability | Speechify | Deepgram Aura |
|---|---|---|
| Price (per 1M chars) | From $6 / 1M | Aura-1 $15, Aura-2 $30 |
| Pricing model | Per character; no credits, no token math | Per character, by model generation |
| Voice quality | Proprietary neural voice models | Natural and conversational; tuned for real-time agent use |
| Voices | 1,500+ | A smaller curated set |
| Languages | 30+ | Primarily English-focused; fewer languages |
| Voice cloning | Professional voice cloning included | No general-purpose voice cloning |
| Latency | Sub-300ms first byte, streaming | Very low latency; a core strength |
| Commercial use / free tier | Commercial use on every plan; 50K chars/month free | Commercial use; $200 in free credit to start |
Deepgram Aura is built for real-time voice agents, with Aura-2 at $30 per million characters and Aura-1 at $15. The model is genuinely good for live conversation. SpeechifyAI is from $6 per million characters on sub-300ms streaming first byte, with a catalog of 1,500+ voices and 30+ languages covering use cases that need something other than a conversational profile, like audiobooks, e-learning, or IVR replacement.
Aura does not offer general voice cloning. SpeechifyAI does, included on Starter and above, with the cloned voice using the same per-character rate as everything else in the catalog and running on the same streaming endpoint, so a team that wants both the real-time conversational profile and a custom brand voice can ship both from one API.
SpeechifyAI covers real-time conversational TTS at from $6 per million characters across the catalog, with sub-300ms streaming first byte, 1,500+ voices and 30+ languages, professional voice cloning included on Starter and above, and a 99.9% uptime SLA.