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

side by side.

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01

Large language models

4 models
xAI
Grok 4.5
×
OpenAI
GPT-5.5
×
OpenAI
GPT-5 nano
×
Perplexity
Sonar
×
Output $/MTok$6.00$30.00$0.40$1.00
Input $/MTok$2.00$5.00$0.05$1.00
Cached input $/MTok$0.3000$0.5000$0.0050
Context window500,0001,050,000400,000128,000
Output cap500,000128,000128,0008,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text, image / out: textin: text / out: text
Tool use
Structured output
FamilyGrok 4GPT-5.5GPT-5Sonar
Knowledge cutoff2026-02-012025-12-012024-05-31
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
02

Speech to text

2 models
Rev.ai
Rev.ai Reverb
×
Speechmatics
Speechmatics Melia 1
×
$/min$0.003300$0.002150
$/min batch
Streaming
Realtime
Languagesen68+
Diarizationincludedincluded
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗