Is Step 3.7 Flash or Step 3.5 Flash 2603 cheaper?

Step 3.5 Flash 2603 is cheaper on output tokens ($0.30 vs $1.11 per 1M).

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

Both models offer a similar context window.

Step 3.7 Flash vs Step 3.5 Flash 2603

Step 3.5 Flash 2603 is cheaper on output tokens. Choose 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	Step 3.7 Flash	Step 3.5 Flash 2603
Provider	StepFun (Global)	StepFun (Global)
Input / 1M tokens	$0.19	$0.10
Output / 1M tokens	$1.11	$0.30
Context window	256K	256K
Parameters	—	—
Open weights	Yes	Yes
Released	May 2026	Apr 2026

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.