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

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

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

Both models offer a similar context window.

Step 3.5 Flash 2603 vs StepFun: Step 3.7 Flash

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

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

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

FAQ

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