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

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01

Large language models

3 models
OpenAI
GPT-4.1
×
xAI
Grok 4.5
×
OpenAI
OpenAI o1
×
Output $/MTok$8.00$6.00$60.00
Input $/MTok$2.00$2.00$15.00
Cached input $/MTok$0.5000$0.3000$7.5000
Context window1,047,576500,000200,000
Output cap32,768500,000100,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGPT-4.1Grok 4o-series
Knowledge cutoff2024-06-012026-02-012023-10-01
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
02

Speech to text

2 models
Rev.ai
Rev.ai Reverb
×
AssemblyAI
Whisper-Streaming
×
$/min$0.003300$0.005000
$/min batch
Streaming
Realtime
Languagesen99+
Diarizationincludedextra-cost
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

1 model
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$19.50
Voice qualityneural
Voice cloning
Voice count
Languagesen, 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
Verified2026-07-19
Sourceprovider page ↗