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

side by side.

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01

Large language models

1 model
xAI
Grok 4.3
×
Output $/MTok$2.50
Input $/MTok$1.25
Cached input $/MTok$0.2000
Context window1,000,000
Output cap1,000,000
Modalitiesin: text, image / out: text
Tool use
Structured output
FamilyGrok 4
Knowledge cutoff
Verified2026-07-19
Sourceprovider page ↗
02

Speech to text

2 models
Rev.ai
Rev.ai Reverb
×
AssemblyAI
Universal-2
×
$/min$0.003300$0.002500
$/min batch
Streaming
Realtime
Languagesen99+
Diarizationincludedextra-cost
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

3 models
OpenAI
TTS-1
×
Deepgram
Deepgram Aura 2
×
Smallest.ai
Lightning v3.1
×
$/1M chars$15.00$30.00$17.50
Voice qualityneuralneuralneural
Voice cloning✓ included
Voice count217
Languagesenen, es, de, fr, nl, it, jaen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB200ms
Output formatswav, mp3, linear16, mulaw, alaw, opuspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗