Is Step 3.7 Flash or Step 3.5 Flash cheaper?

Step 3.5 Flash 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?

Both models offer a similar context window.

Step 3.7 Flash vs Step 3.5 Flash

Step 3.5 Flash is cheaper on output tokens. Choose Step 3.7 Flash or Step 3.5 Flash 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
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	Jan 2026

Step 3.7 Flash details →Step 3.5 Flash details →

FAQ

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