HAIL.SO / DISPATCH · 2026-07-21 · COMPARE
FILE: COMPARE · 6 of 6 slots

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01

Large language models

3 models
OpenAI
GPT-4o
×
xAI
Grok 4.5
×
OpenAI
OpenAI o3
×
Output $/MTok$10.00$6.00$8.00
Input $/MTok$2.50$2.00$2.00
Cached input $/MTok$1.2500$0.3000$0.5000
Context window128,000500,000200,000
Output cap16,384500,000100,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGPT-4oGrok 4o-series
Knowledge cutoff2023-10-012026-02-012024-06-01
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
02

Speech to text

2 models
Rev.ai
Rev.ai Reverb
×
OpenAI
GPT Realtime Whisper
×
$/min$0.003300$0.017000
$/min batch
Streaming
Realtime
Languagesen99+
Diarizationincludedunsupported
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

1 model
LMNT
LMNT Blizzard
×
$/1M chars$50.00
Voice qualityneural
Voice cloning✓ included
Voice count
Languages31+
SSML support
TTFB
Output formats
Verified2026-07-19
Sourceprovider page ↗