Step 1 (32K) vs Step 3.5 Flash
Step 3.5 Flash is cheaper on output tokens, while Step 3.5 Flash offers a larger context window. Choose Step 1 (32K) or Step 3.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Step 1 (32K) | Step 3.5 Flash |
|---|---|---|
| Provider | StepFun (Global) | StepFun (Global) |
| Input / 1M tokens | $2.05 | $0.10 |
| Output / 1M tokens | $9.59 | $0.30 |
| Context window | 33K | 256K |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Jan 2025 | Jan 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.