HAIL.SO / DISPATCH · 2026-07-02 · COMPARE
FILE: COMPARE · 6 of 6 slots

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02

Speech to text

3 models
AssemblyAI
Universal-2
×
AssemblyAI
Universal-Streaming
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.002500$0.002500$0.002150
$/min batch
Streaming
Realtime
Languages99+en56+
Diarizationextra-costextra-costincluded
TTFW
Verified2026-07-022026-07-022026-07-02
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
Cartesia
Sonic 2
×
OpenAI
TTS-1
×
Smallest.ai
Lightning v3.1
×
$/1M chars$50.00$15.00$17.50
Voice qualityneuralneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, fr, de, es, pt, zh, ja, koenen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB90ms200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-022026-07-022026-07-02
Sourceprovider page ↗provider page ↗provider page ↗