HAIL.SO / DISPATCH · 2026-07-05 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

4 models
Speechmatics
Speechmatics Enhanced
×
AssemblyAI
Universal-2
×
Rev.ai
Rev.ai Reverb
×
Microsoft Azure
Azure Speech (Batch)
×
$/min$0.002150$0.002500$0.003300$0.006000
$/min batch
Streaming
Realtime
Languages56+99+en100+
Diarizationincludedextra-costincludedincluded
TTFW
Verified2026-07-022026-07-022026-07-022026-05-19stale 47d
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

2 models
Smallest.ai
Lightning v3.1
×
Cartesia
Sonic 2
×
$/1M chars$17.50$50.00
Voice qualityneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren, fr, de, es, pt, zh, ja, ko
SSML support
TTFB200ms90ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗