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
Microsoft Azure
Azure Speech (Batch)
×
Speechmatics
Speechmatics Enhanced
×
AssemblyAI
Universal-Streaming
×
$/min$0.006000$0.004000$0.002500
$/min batch
Streaming
Realtime
Languages100+55+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
Smallest.ai
Lightning v3.1
×
Deepgram
Deepgram Aura 2
×
Rime
Rime Mist v3
×
$/1M chars$25.00$30.00$30.00
Voice qualityneuralneuralneural
Voice cloning✓ included
Voice count21794
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren, es, de, fr, nl, it, jaen
SSML support
TTFB200ms100ms
Output formatspcm, wav, mp3, mulawwav, mp3, linear16, mulaw, alaw, opus
Verified2026-05-19stale 40d2026-05-19stale 40d2026-05-19stale 40d
Sourceprovider page ↗provider page ↗provider page ↗