HAIL.SO / DISPATCH · 2026-07-22 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

← all costsclear
02

Speech to text

4 models
Cartesia
Ink 2
×
OpenAI
GPT-4o Transcribe
×
Speechmatics
Speechmatics Enhanced
×
Rev.ai
Rev.ai Reverb
×
$/min$0.009000$0.006000$0.002150$0.003300
$/min batch
Streaming
Realtime
Languagesen99+56+en
Diarizationunsupportedincludedincluded
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
×
LMNT
LMNT Blizzard
×
$/1M chars$19.50$50.00
Voice qualityneuralneural
Voice cloning✓ included
Voice count
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, pl31+
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗