Grok 4.3 (High) vs Step 3.5 Flash 2603

Grok 4.3 (High) 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.

SpaceXAIGrok 4.3 (High)Off the frontier
Intelligence
24.90
Total cost
$363
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.

MetricGrok 4.3 (High)Step 3.5 Flash 2603Difference
Intelligence (higher is better)24.917.0−31.7% Step 3.5 Flash 2603 is 31.7% less intelligent
Total AA cost (lower is better)$363.24Not reported— not comparable
End-to-end time (lower is better)24.88s21.03s−15.5% Step 3.5 Flash 2603 is 15.5% faster
Price per 1M tokens (in / out)$1.25 / $2.50$0.10 / $0.30
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGrok 4.3 (High): what beats itStep 3.5 Flash 2603: what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/grok-4-3/step-3-5-flash · Markdown: /api/v1/compare/grok-4-3/step-3-5-flash?format=md · llms.txt · agent skill