HAIL.SO / DISPATCH · 2026-06-11 · COMPARE
FILE: COMPARE · 6 of 6 slots

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02

Speech to text

3 models
AssemblyAI
Universal-2
×
Speechmatics
Speechmatics Enhanced
×
AssemblyAI
Universal-Streaming
×
$/min$0.002500$0.004000$0.002500
$/min batch
Streaming
Realtime
Languages99+55+en
Diarizationextra-costincludedextra-cost
TTFW
Verified2026-05-05stale 37d2026-05-192026-05-05stale 37d
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
Cartesia
Sonic 2
×
Smallest.ai
Lightning v3.1
×
Cartesia
Sonic 3.5
×
$/1M chars$50.00$25.00$50.00
Voice qualityneuralneuralneural
Voice cloning✓ included✓ included✓ included
Voice count217
Languages15+en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or42+
SSML support
TTFB90ms200ms90ms
Output formatspcm, wav, mp3, mulawraw/pcm_f32le, raw/pcm_s16le, raw/pcm_mulaw, raw/pcm_alaw, wav, mp3
Verified2026-05-192026-05-192026-05-05stale 37d
Sourceprovider page ↗provider page ↗provider page ↗