Deepgram Deepgram Aura 2 | OpenAI GPT-4o mini TTS | |
|---|---|---|
| $/1M chars | $30.00 | $20.00 |
| Voice quality | neural | neural |
| Voice cloning | — | — |
| Voice count | — | — |
| Languages | en, es, de, fr, nl, it, ja | en |
| SSML support | — | — |
| TTFB | — | — |
| Output formats | wav, mp3, linear16, mulaw, alaw, opus | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |