GPT-6 Luna (Xhigh) vs Step 3.5 Flash 2603

GPT-6 Luna (Xhigh) vs Step 3.5 Flash 2603. 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 (Xhigh)On the frontier
Intelligence
34.60
Total cost
$66.8
StepFunStep 3.5 Flash 2603Not ranked · benchmark data missing
Intelligence
17.00
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 (Xhigh)Step 3.5 Flash 2603Difference
Intelligence (higher is better)34.617.0−50.9% Step 3.5 Flash 2603 is 50.9% less intelligent
Total AA cost (lower is better)$66.81Not reported— not comparable
End-to-end time (lower is better)23.81s19.57s−17.8% Step 3.5 Flash 2603 is 17.8% faster
Price per 1M tokens (in / out)$0.10 / $0.50$0.10 / $0.30
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-6 Luna (Xhigh): what beats itStep 3.5 Flash 2603: 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-xhigh/step-3-5-flash · Markdown: /api/v1/compare/gpt-6-luna-xhigh/step-3-5-flash?format=md · llms.txt · agent skill