Grok 4 Fast (Reasoning) vs Step 5 Preview

Grok 4 Fast (Reasoning) vs Step 5 Preview. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

SpaceXAIGrok 4 Fast (Reasoning)Not ranked · benchmark data missing
Intelligence
17.90
Total cost
-
StepFunStep 5 PreviewOff the frontier
Intelligence
43.70
Total cost
$1190
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.

MetricGrok 4 Fast (Reasoning)Step 5 PreviewDifference
Intelligence (higher is better)17.943.7+144.1% Step 5 Preview is 2.4× more intelligent
Total AA cost (lower is better)Not reported$1,190.26— not comparable
End-to-end time (lower is better)Not reported12.06s— not comparable
Price per 1M tokens (in / out)$0.20 / $0.50$1.00 / $2.70
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGrok 4 Fast (Reasoning): what beats itStep 5 Preview: what beats it
Matchup

Compare something else

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