Kimi K3.1 Pro vs Step 3.5 Flash 2603

Kimi K3.1 Pro 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.

KimiKimi K3.1 ProOn the frontier
Intelligence
55.10
Total cost
$3117
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.

MetricKimi K3.1 ProStep 3.5 Flash 2603Difference
Intelligence (higher is better)55.117.0−69.1% Step 3.5 Flash 2603 is 69.1% less intelligent
Total AA cost (lower is better)$3,117.31Not reported— not comparable
End-to-end time (lower is better)44.78s20.55s−54.1% Step 3.5 Flash 2603 is 54.1% faster
Price per 1M tokens (in / out)$2.00 / $10.0$0.10 / $0.30
Input modalitiesText, ImageText
Open this matchup in the interactive pickerKimi K3.1 Pro: 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/kimi-k3-1-pro/step-3-5-flash · Markdown: /api/v1/compare/kimi-k3-1-pro/step-3-5-flash?format=md · llms.txt · agent skill