HAIL.SO / DISPATCH · 2026-07-23 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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01

Large language models

2 models
xAI
Grok 4.5
×
OpenAI
GPT-4o
×
Output $/MTok$6.00$10.00
Input $/MTok$2.00$2.50
Cached input $/MTok$0.3000$1.2500
Context window500,000128,000
Output cap500,00016,384
Modalitiesin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGrok 4GPT-4o
Knowledge cutoff2026-02-012023-10-01
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
02

Speech to text

1 model
Rev.ai
Rev.ai Reverb
×
$/min$0.003300
$/min batch
Streaming
Realtime
Languagesen
Diarizationincluded
TTFW
Verified2026-07-19
Sourceprovider page ↗
03

Text to speech

3 models
Deepgram
Deepgram Aura 2
×
OpenAI
TTS-1
×
Smallest.ai
Lightning v3.1
×
$/1M chars$30.00$15.00$17.50
Voice qualityneuralneuralneural
Voice cloning✓ included
Voice count217
Languagesen, es, de, fr, nl, it, jaenen, 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 ↗