HAIL.SO / DISPATCH · 2026-07-04 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

4 models
AssemblyAI
Universal-Streaming
×
Microsoft Azure
Azure Speech (Batch)
×
AssemblyAI
Universal-2
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.002500$0.006000$0.002500$0.002150
$/min batch
Streaming
Realtime
Languagesen100+99+56+
Diarizationextra-costincludedextra-costincluded
TTFW
Verified2026-07-022026-05-19stale 46d2026-07-022026-07-02
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

2 models
Smallest.ai
Lightning v3.1
×
LMNT
LMNT Blizzard
×
$/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, or31+
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗