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

side by side.

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02

Speech to text

4 models
OpenAI
GPT Realtime Whisper
×
Rev.ai
Rev.ai Reverb
×
Gladia
Gladia Solaria-1
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.017000$0.003300$0.012500$0.002150
$/min batch$0.010170
Streaming
Realtime
Languages99+en100+56+
Diarizationunsupportedincludedincludedincluded
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 Turbo
×
Smallest.ai
Lightning v3.1
×
$/1M chars$50.00$17.50
Voice qualityneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, fr, de, es, pt, zh, ja, hi, koen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB40ms200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗