← all categories
Best Text-to-Speech tools
Voice-synthesis APIs agents call to turn text into speech.
Ranked by cost · 1M chars+ verified agent-readiness · not yet benchmarked
Comparable cost for a standard workload — the objective axis. AI rank = price-blind quality opinion aggregated from multiple AI models (labeled, never mixed into the cost order). Click any column to sort. how it's scored →
↓ sorted by cost — cheapest for the standard workload first · click any header to re-sort · # = position in current sort
| # | Tool | 1M chars | AI rank | Free tier | SOC 2 | Docs | Maint. |
|---|---|---|---|---|---|---|---|
| 1 |  Kokoro (hosted on DeepInfra) | ✗ | — | — | |||
| 2 |  Speechify API | ✗ | — | — | |||
| 3 |  OpenAI TTS | ✗ | 5/5 | — | |||
| 4 |  Fish Audio | 4/5 | — | ||||
| 5 |  Google Cloud Text-to-Speech | 2/5 | — | ||||
| 6 |  Azure AI Speech (Text-to-Speech) | — | — | ||||
| 7 |  Amazon Polly | — | — | ||||
| 8 |  Inworld AI (TTS) | — | — | ||||
| 9 |  Deepgram Aura | ✗ | — | — | |||
| 10 |  Cartesia | — | — | ||||
| 11 |  Rime | 4/5 | — | ||||
| 12 |  LMNT | — | — | ||||
| 13 |  MiniMax Speech | ✗ | — | — | — | ||
| 14 |  Hume AI Octave TTS | — | — | ||||
| 15 |  ElevenLabs | 4/5 | — | ||||
| 16 |  Resemble AI | ✗ | — | — |