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
×
Google
Chirp 2
×
OpenAI
Whisper
×
$/min$0.003300$0.016000$0.006000
$/min batch
Streaming
Realtime
Languagesen20+99+
Diarizationincludedincludedunsupported
TTFW
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
LMNT
LMNT Blizzard
×
OpenAI
TTS-1
×
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$50.00$15.00$19.50
Voice qualityneuralneuralneural
Voice cloning✓ included
Voice count
Languages31+enen, 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
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗