GPT-6 Luna (Low) vs Grok 4 Fast (Non-reasoning)

GPT-6 Luna (Low) 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.

OpenAIGPT-6 Luna (Low)On the frontier
Intelligence
21.50
Total cost
$10.6
SpaceXAIGrok 4 Fast (Non-reasoning)Not ranked · benchmark data missing
Intelligence
11.10
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-6 Luna (Low)Grok 4 Fast (Non-reasoning)Difference
Intelligence (higher is better)21.511.1−48.4% Grok 4 Fast (Non-reas… is 48.4% less intelligent
Total AA cost (lower is better)$10.63Not reported— not comparable
End-to-end time (lower is better)6.60sNot reported— not comparable
Price per 1M tokens (in / out)$0.10 / $0.50$0.20 / $0.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-6 Luna (Low): what beats itGrok 4 Fast (Non-reasoning): 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-6-luna-low/grok-4-fast · Markdown: /api/v1/compare/gpt-6-luna-low/grok-4-fast?format=md · llms.txt · agent skill