HAIL.SO / DISPATCH · 2026-07-26 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

4 models
Rev.ai
Rev.ai Reverb
×
OpenAI
Whisper
×
Speechmatics
Speechmatics Melia 1
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.003300$0.006000$0.002150$0.002150
$/min batch
Streaming
Realtime
Languagesen99+68+56+
Diarizationincludedunsupportedincludedincluded
TTFW
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

2 models
Cartesia
Sonic 2
×
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$50.00$19.50
Voice qualityneuralneural
Voice cloning✓ included
Voice count
Languagesen, fr, de, es, pt, zh, ja, koen, 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, pl
SSML support
TTFB90ms200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗