HAIL.SO / DISPATCH · 2026-07-27 · COMPARE
FILE: LLM · 2 models

GPT-5.4 mini vs Grok 4.5

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OpenAI
GPT-5.4 mini
xAI
Grok 4.5
Output $/MTok$4.50$6.00
Input $/MTok$0.75$2.00
Cached input $/MTok$0.0750$0.3000
Context window400,000500,000
Output cap128,000500,000
Modalitiesin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGPT-5.4Grok 4
Knowledge cutoff2025-08-312026-02-01
Verified2026-07-272026-07-27
Sourceprovider page ↗provider page ↗