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

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02

Speech to text

4 models
Rev.ai
Rev.ai Reverb
×
AssemblyAI
Universal-Streaming English
×
Speechmatics
Speechmatics Enhanced
×
OpenAI
Whisper
×
$/min$0.003300$0.002500$0.002150$0.006000
$/min batch
Streaming
Realtime
Languagesenen56+99+
Diarizationincludedextra-costincludedunsupported
TTFW
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

2 models
Smallest.ai
Lightning v3.1 Pro
×
Rime
Rime Mist v3
×
$/1M chars$19.50$30.00
Voice qualityneuralneural
Voice cloning
Voice count94
Languagesen, hi, mr, ta, ml, te, kn, pa, bn, or, gu, ar, zh, id, ja, ko, ms, tr, vi, de, es, fr, it, pt, ru, el, fi, no, plen
SSML support
TTFB200ms37ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗