GPT-5.6 Luna (Xhigh) vs Grok Code Fast 1

GPT-5.6 Luna (Xhigh) vs Grok Code Fast 1. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.6 Luna (Xhigh)Off the frontier
Intelligence
34.60
Total cost
$179
SpaceXAIGrok Code Fast 1Not ranked · benchmark data missing
Intelligence
14.10
Total cost
-
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 Code Fast 1Difference
Intelligence (higher is better)34.614.1−59.2% Grok Code Fast 1 is 59.2% less intelligent
Total AA cost (lower is better)$179.33Not reported— not comparable
End-to-end time (lower is better)37.10sNot reported— not comparable
Price per 1M tokens (in / out)$0.20 / $1.20—
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-5.6 Luna (Xhigh): what beats itGrok Code Fast 1: what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-luna-xhigh/grok-code-fast-1 · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/grok-code-fast-1?format=md · llms.txt · agent skill