HAIL.SO / DISPATCH · 2026-07-25 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

3 models
Rev.ai
Rev.ai Whisper Fusion
×
Rev.ai
Rev.ai Reverb
×
Speechmatics
Speechmatics Melia 1
×
$/min$0.005000$0.003300$0.002150
$/min batch
Streaming
Realtime
Languagesenen68+
Diarizationincludedincludedincluded
TTFW
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
03

Text to speech

3 models
Cartesia
Sonic 2
×
Deepgram
Deepgram Aura 2
×
Smallest.ai
Lightning v3.1
×
$/1M chars$50.00$30.00$17.50
Voice qualityneuralneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, fr, de, es, pt, zh, ja, koen, es, de, fr, nl, it, jaen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB90ms200ms
Output formatswav, mp3, linear16, mulaw, alaw, opuspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗