StepFun: Step 3.5 Flash vs StepFun: Step 5 Preview
StepFun: Step 3.5 Flash is cheaper on output tokens, while StepFun: Step 5 Preview offers a larger context window. Choose StepFun: Step 3.5 Flash or StepFun: Step 5 Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | StepFun: Step 3.5 Flash | StepFun: Step 5 Preview |
|---|---|---|
| Provider | StepFun | StepFun |
| Input / 1M tokens | $0.10 | $1.00 |
| Output / 1M tokens | $0.30 | $2.70 |
| Context window | 262K | 1M |
| Parameters | — | — |
| Open weights | Yes | — |
| Released | Jan 2026 | — |
FAQ
Is StepFun: Step 3.5 Flash or StepFun: Step 5 Preview cheaper?
StepFun: Step 3.5 Flash is cheaper on output tokens ($0.30 vs $2.70 per 1M).
Which has the larger context window, StepFun: Step 3.5 Flash or StepFun: Step 5 Preview?
StepFun: Step 5 Preview has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.