HAIL.SO / DISPATCH · 2026-07-24 · COMPARE
FILE: COMPARE · 6 of 6 slots

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01

Large language models

1 model
OpenAI
GPT-5.4
×
Output $/MTok$15.00
Input $/MTok$2.50
Cached input $/MTok$0.2500
Context window1,050,000
Output cap128,000
Modalitiesin: text, image / out: text
Tool use
Structured output
FamilyGPT-5.4
Knowledge cutoff2025-08-31
Verified2026-07-19
Sourceprovider page ↗
02

Speech to text

4 models
Speechmatics
Speechmatics Melia 1
×
Rev.ai
Rev.ai Reverb
×
AssemblyAI
Whisper-Streaming
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.002150$0.003300$0.005000$0.002150
$/min batch
Streaming
Realtime
Languages68+en99+56+
Diarizationincludedincludedextra-costincluded
TTFW
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

1 model
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$19.50
Voice qualityneural
Voice cloning
Voice count
Languagesen, hi, mr, ta, ml, te, kn, pa, bn, or, gu, ar, zh, id, ja, ko, ms, tr, vi, de, es, fr, it, pt, ru, el, fi, no, pl
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-19
Sourceprovider page ↗