GPT-5.6 Luna (Xhigh) vs Grok 4 Fast (Non-reasoning)

GPT-5.6 Luna (Xhigh) vs Grok 4 Fast (Non-reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricGPT-5.6 Luna (Xhigh)Grok 4 Fast (Non-reasoning)Difference
Intelligence (higher is better)34.611.1−67.9% Grok 4 Fast (Non-reas… is 67.9% less intelligent
Total AA cost (lower is better)$179.33Not reported— not comparable
End-to-end time (lower is better)40.39sNot reported— not comparable
Price per 1M tokens (in / out)$0.20 / $1.20$0.20 / $0.50
Input modalitiesText, ImageText, Image
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-luna-xhigh/grok-4-fast · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/grok-4-fast?format=md · llms.txt · agent skill