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

side by side.

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01

Large language models

3 models
xAI
Grok 4.5
×
OpenAI
GPT-5
×
Perplexity
Sonar
×
Output $/MTok$6.00$10.00$1.00
Input $/MTok$2.00$1.25$1.00
Cached input $/MTok$0.3000$0.1250
Context window500,000400,000128,000
Output cap500,000128,0008,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text / out: text
Tool use
Structured output
FamilyGrok 4GPT-5Sonar
Knowledge cutoff2026-02-012024-09-30
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
02

Speech to text

1 model
Speechmatics
Speechmatics Enhanced
×
$/min$0.002150
$/min batch
Streaming
Realtime
Languages56+
Diarizationincluded
TTFW
Verified2026-07-19
Sourceprovider page ↗
03

Text to speech

2 models
Smallest.ai
Lightning v3.1
×
Smallest.ai
Lightning v3.1 Pro
×
$/1M chars$17.50$19.50
Voice qualityneuralneural
Voice cloning✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren, 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
TTFB200ms200ms
Output formatspcm, mp3, wav, ulaw, alawpcm, mp3, wav, ulaw, alaw
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗