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
OpenAI
GPT-4.1
×
OpenAI
GPT-5.5 Pro
×
Perplexity
Sonar
×
xAI
Grok 4.5
×
Output $/MTok$8.00$180.00$1.00$6.00
Input $/MTok$2.00$30.00$1.00$2.00
Cached input $/MTok$0.5000$0.3000
Context window1,047,5761,050,000128,000500,000
Output cap32,768128,0008,000500,000
Modalitiesin: text, image / out: textin: text, image / out: textin: text / out: textin: text, image / out: text
Tool use
Structured output
FamilyGPT-4.1GPT-5.5SonarGrok 4
Knowledge cutoff2024-06-012025-12-012026-02-01
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗
02

Speech to text

2 models
AssemblyAI
Whisper-Streaming
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.005000$0.002150
$/min batch
Streaming
Realtime
Languages99+56+
Diarizationextra-costincluded
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗