Is StepFun: Step 3.7 Flash or Step 3.5 Flash 2603 cheaper?

Step 3.5 Flash 2603 is cheaper on output tokens ($0.30 vs $1.15 per 1M).

Which has the larger context window, StepFun: Step 3.7 Flash or Step 3.5 Flash 2603?

Both models offer a similar context window.

StepFun: Step 3.7 Flash vs Step 3.5 Flash 2603

Step 3.5 Flash 2603 is cheaper on output tokens. Choose StepFun: Step 3.7 Flash or Step 3.5 Flash 2603 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	StepFun: Step 3.7 Flash	Step 3.5 Flash 2603
Provider	StepFun	StepFun
Input / 1M tokens	$0.20	$0.10
Output / 1M tokens	$1.15	$0.30
Context window	256K	256K
Parameters	—	—
Open weights	Yes	Yes
Released	May 2026	Apr 2026

StepFun: Step 3.7 Flash details →Step 3.5 Flash 2603 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.