StepFun: Step 3.5 Flash vs Step 3.5 Flash 2603
Both have similar output pricing, while StepFun: Step 3.5 Flash offers a larger context window. Choose StepFun: Step 3.5 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 | StepFun: Step 3.5 Flash | Step 3.5 Flash 2603 |
|---|---|---|
| Provider | StepFun | StepFun |
| Input / 1M tokens | $0.09 | $0.10 |
| Output / 1M tokens | $0.30 | $0.30 |
| Context window | 262K | 256K |
| Parameters | — | — |
| Open weights | Yes | Yes |
| Released | Jan 2026 | Apr 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.