HAIL.SO / DISPATCH · 2026-07-22 · 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
×
OpenAI
Whisper
×
Rev.ai
Rev.ai Whisper Fusion
×
$/min$0.003300$0.006000$0.005000
$/min batch
Streaming
Realtime
Languagesen99+en
Diarizationincludedunsupportedincluded
TTFW
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
OpenAI
TTS-1
×
Cartesia
Sonic 3
×
Smallest.ai
Lightning v3.1
×
$/1M chars$15.00$50.00$17.50
Voice qualityneuralneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen42+en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗