HAIL.SO / DISPATCH · 2026-07-21 · 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

2 models
AssemblyAI
Universal-2
×
Rev.ai
Rev.ai Reverb
×
$/min$0.002500$0.003300
$/min batch
Streaming
Realtime
Languages99+en
Diarizationextra-costincluded
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

2 models
OpenAI
TTS-1
×
Cartesia
Sonic Turbo
×
$/1M chars$15.00$50.00
Voice qualityneuralneural
Voice cloning✓ included
Voice count
Languagesenen, fr, de, es, pt, zh, ja, hi, ko
SSML support
TTFB40ms
Output formats
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗