HAIL.SO / DISPATCH · 2026-07-23 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

3 models
Rev.ai
Rev.ai Reverb
×
Rev.ai
Rev.ai Whisper Fusion
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.003300$0.005000$0.002150
$/min batch
Streaming
Realtime
Languagesenen56+
Diarizationincludedincludedincluded
TTFW
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
Smallest.ai
Lightning v3.1
×
OpenAI
TTS-1
×
Cartesia
Sonic 2
×
$/1M chars$17.50$15.00$50.00
Voice qualityneuralneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, orenen, fr, de, es, pt, zh, ja, ko
SSML support
TTFB200ms90ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗