TTS API Comparison Table
Key parameters of TTS API providers at a glance for quick decision making.
| Provider | Pricing | Free Tier | Languages | Voices | Streaming | Latency |
|---|---|---|---|---|---|---|
| Amazon Polly | Per-character billing, Standard $4/million characters, Neural $16/million characters | 5 million characters free per month (first year) | 10 | 60 | ✅ | Low (200-600ms) |
| Azure Speech Service | Per-character billing, Standard $4/million characters, Neural $16/million characters | 500,000 characters free per month | 15 | 400 | ✅ | Low (200-500ms) |
| Deepgram | Per-character billing, Standard $0.015/thousand characters | $200 free credits | 10 | 10 | ✅ | Very low (<200ms) |
| ElevenLabs API | Per-character billing, Free tier $5/month (10K chars), Paid plans from $11/month | Free plan: 10,000 characters per month | 12 | 100 | ✅ | Very low (100-300ms) |
| Google Cloud Text-to-Speech | Per-character billing, Standard $4/million characters, WaveNet $16/million characters | 1 million characters free per month | 12 | 220 | ✅ | Moderate (300-800ms) |
| OpenAI Text-to-Speech | Per-character billing, Standard $15/million characters | Free credits included with API account sign-up | 10 | 6 | ✅ | Low (200-500ms) |
| Play.ht | Subscription-based, paid plans from $31.25/month | Free plan: 5,000 characters per day | 11 | 800 | ✅ | Moderate (300-700ms) |