Grok TTS just took the top spot on The Humanness Index It scored 94 for humanness....just six points below the human baseline of 100 and achieved the highest model rating Even the cost difference is insane: • Grok TTS: $15 • Eleven v3: $100 Grok delivers the higher human-likeness score while costing nearly 7× less than the next model It is also faster, with 460 ms latency compared with 758 ms for Eleven v3 Grok TTS is delivering top-tier voice quality without the premium price

this TTS model generates speech 167x faster than you can hear it. Supertonic is an on-device TTS engine that runs via ONNX for cross-platform inference. - no GPU - 31 languages - captures every emotion - beats ElevenLabs on speed - runs even on a Raspberry Pi 100% open-source.