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

side by side.

← all costsclear
02

Speech to text

4 models
Microsoft Azure
Azure Speech (Batch)
×
Speechmatics
Speechmatics Enhanced
×
AssemblyAI
Universal-Streaming
×
Rev.ai
Rev.ai Reverb
×
$/min$0.006000$0.002150$0.002500$0.003300
$/min batch
Streaming
Realtime
Languages100+56+enen
Diarizationincludedincludedextra-costincluded
TTFW
Verified2026-05-19stale 44d2026-07-022026-07-022026-07-02
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 ↗