HAIL.SO / DISPATCH · 2026-06-30 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

← all costsclear
02

Speech to text

4 models
AssemblyAI
Universal-2
×
Speechmatics
Speechmatics Enhanced
×
Rev.ai
Rev.ai Reverb
×
Microsoft Azure
Azure Speech (Batch)
×
$/min$0.002500$0.004000$0.003300$0.006000
$/min batch
Streaming
Realtime
Languages99+55+en100+
Diarizationextra-costincludedincludedincluded
TTFW
Verified2026-05-05stale 56d2026-05-19stale 42d2026-05-19stale 42d2026-05-19stale 42d
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

2 models
Deepgram
Deepgram Aura 2
×
Smallest.ai
Lightning v3.1
×
$/1M chars$30.00$25.00
Voice qualityneuralneural
Voice cloning✓ included
Voice count217
Languagesen, es, de, fr, nl, it, jaen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB200ms
Output formatswav, mp3, linear16, mulaw, alaw, opuspcm, wav, mp3, mulaw
Verified2026-05-19stale 42d2026-05-19stale 42d
Sourceprovider page ↗provider page ↗