HAIL.SO / DISPATCH · 2026-06-26 · COMPARE
FILE: COMPARE · 6 of 6 slots

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02

Speech to text

4 models
AssemblyAI
Universal-2
×
Speechmatics
Speechmatics Enhanced
×
Rev.ai
Rev.ai Reverb
×
AssemblyAI
Universal-Streaming
×
$/min$0.002500$0.004000$0.003300$0.002500
$/min batch
Streaming
Realtime
Languages99+55+enen
Diarizationextra-costincludedincludedextra-cost
TTFW
Verified2026-05-05stale 52d2026-05-19stale 38d2026-05-19stale 38d2026-05-05stale 52d
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 38d2026-05-19stale 38d
Sourceprovider page ↗provider page ↗