HAIL.SO / DISPATCH · 2026-07-22 · COMPARE
FILE: COMPARE · 6 of 6 slots

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01

Large language models

5 models
xAI
Grok 4.3
×
OpenAI
GPT-5.5
×
xAI
Grok 4.5
×
OpenAI
GPT-5
×
OpenAI
OpenAI o3
×
Output $/MTok$2.50$30.00$6.00$10.00$8.00
Input $/MTok$1.25$5.00$2.00$1.25$2.00
Cached input $/MTok$0.2000$0.5000$0.3000$0.1250$0.5000
Context window1,000,0001,050,000500,000400,000200,000
Output cap1,000,000128,000500,000128,000100,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text, image / out: textin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGrok 4GPT-5.5Grok 4GPT-5o-series
Knowledge cutoff2025-12-012026-02-012024-09-302024-06-01
Verified2026-07-192026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗provider page ↗
03

Text to speech

1 model
Smallest.ai
Lightning v3.1
×
$/1M chars$17.50
Voice qualityneural
Voice cloning✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-19
Sourceprovider page ↗