Home › Compare › StepFun: Step 3.5 Flash vs StepFun: Step 3.7 Flash
StepFun: Step 3.5 Flash vs StepFun: Step 3.7 Flash: API Pricing Compared
Comparing StepFun: Step 3.5 Flash and StepFun: Step 3.7 Flash: on combined input+output list price, StepFun: Step 3.5 Flash is cheaper at $0.4 vs $1.35 per 1M tokens — a difference of $0.95 (70%). StepFun: Step 3.5 Flash costs $0.1 in / $0.3 out with a 262,144-token context; StepFun: Step 3.7 Flash costs $0.2 in / $1.15 out with a 262,144-token context.
| StepFun: Step 3.5 Flash | StepFun: Step 3.7 Flash | |
|---|---|---|
| Input /1M | $0.1 | $0.2 |
| Output /1M | $0.3 | $1.15 |
| Cached input /1M | — | $0.04 |
| Context window | 262,144 | 262,144 |
| Max output tokens | 65,536 | 230,400 |
| Cost @ 10M in + 2M out / mo | $1.6 | $4.3 |
Estimate your own workload in the cost calculator, or open the full pages for StepFun: Step 3.5 Flash and StepFun: Step 3.7 Flash.
Frequently asked questions
Which is cheaper, StepFun: Step 3.5 Flash or StepFun: Step 3.7 Flash?
StepFun: Step 3.5 Flash is cheaper on combined list price: $0.4 vs $1.35 per 1M tokens (input + output). At 10M input + 2M output tokens per month, StepFun: Step 3.5 Flash costs $1.6 and StepFun: Step 3.7 Flash costs $4.3.
Which has the larger context window, StepFun: Step 3.5 Flash or StepFun: Step 3.7 Flash?
StepFun: Step 3.5 Flash has a context window of 262,144 tokens; StepFun: Step 3.7 Flash has 262,144 tokens. The larger one is StepFun: Step 3.5 Flash.
Price snapshot October 21, 2026, refreshed daily.