Gemini 2.5 Pro vs Step 3.5 Flash

Google · StepFun · catalog 2026-09-14

Trade-off: Step 3.5 Flash is cheaper ($0.12 vs $1.341/M); Gemini 2.5 Pro scores higher on intelligence (16.7 vs 16.6).
Gemini 2.5 ProStep 3.5 Flash
Speed (tok/s)122.7 measured192.1 measured
Blended $/M$1.341 derived$0.12 derived
Intelligence index16.7 measured16.6 measured
TTFT (ms)2418 measured326 measured
Context1049k list—
Coding indexnot measured for both
Agentic indexnot measured for both

Gemini 2.5 Pro card · Step 3.5 Flash card · 3D observatory

Verdicts use price×intelligence dominance only, and only where both sides are measured; null cells stay null with their provenance (em-dash = not in catalog). Percentile-free by design — this page compares two models, not the field. Generated page — do not hand-edit.