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

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01

Large language models

3 models
xAI
Grok 4.5
×
OpenAI
GPT-5.5
×
OpenAI
OpenAI o1
×
Output $/MTok$6.00$30.00$60.00
Input $/MTok$2.00$5.00$15.00
Cached input $/MTok$0.3000$0.5000$7.5000
Context window500,0001,050,000200,000
Output cap500,000128,000100,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGrok 4GPT-5.5o-series
Knowledge cutoff2026-02-012025-12-012023-10-01
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider 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

2 models
OpenAI
TTS-1
×
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$15.00$19.50
Voice qualityneuralneural
Voice cloning
Voice count
Languagesenen, hi, mr, ta, ml, te, kn, pa, bn, or, gu, ar, zh, id, ja, ko, ms, tr, vi, de, es, fr, it, pt, ru, el, fi, no, pl
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗