HAIL.SO / DISPATCH · 2026-06-28 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

3 models
Speechmatics
Speechmatics Enhanced
×
Microsoft Azure
Azure Speech (Batch)
×
AssemblyAI
Universal-Streaming
×
$/min$0.004000$0.006000$0.002500
$/min batch
Streaming
Realtime
Languages55+100+en
Diarizationincludedincludedextra-cost
TTFW
Verified2026-05-19stale 40d2026-05-19stale 40d2026-05-05stale 54d
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
Deepgram
Deepgram Aura 2
×
Smallest.ai
Lightning v3.1
×
Rime
Rime Mist v3
×
$/1M chars$30.00$25.00$30.00
Voice qualityneuralneuralneural
Voice cloning✓ included
Voice count21794
Languagesen, es, de, fr, nl, it, jaen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren
SSML support
TTFB200ms100ms
Output formatswav, mp3, linear16, mulaw, alaw, opuspcm, wav, mp3, mulaw
Verified2026-05-19stale 40d2026-05-19stale 40d2026-05-19stale 40d
Sourceprovider page ↗provider page ↗provider page ↗