Step 3.7 Flash API pricing
As of October 22, 2026, StepFun Step 3.7 Flash costs $0.20 per million input tokens and $1.15 per million output tokens on StepFun's own API, with cached input at $0.04 per million.
Step 3.7 Flash benchmarks and specs · Every StepFun model's price
- Input, per million tokens$0.20
- Output, per million tokens$1.15
- Cached input, per million$0.04
- Context window262K tokens
- Max output230K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0008 | $0.775 | Yes |
| Repository review | 50K input + 3K output tokens | $0.013 | $13.45 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.051 | $51.50 | Yes |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We have read StepFun's own price every day since October 21, 2026. It has not changed yet; any change will be listed here with its date.
- October 21, 2026 First recorded: $0.20 input, $1.15 output
Cheaper models as good as Step 3.7 Flash
Step 3.7 Flash has no overall or coding score, so we make no quality claim against it.
Step 3.7 Flash pricing questions
- How much does Step 3.7 Flash cost per million tokens?
- $0.20 per million input tokens and $1.15 per million output tokens, as listed on OpenRouter on October 22, 2026.
- Does Step 3.7 Flash support prompt caching?
- Yes. OpenRouter lists cached input at $0.04 per million tokens, against $0.20 for uncached input.
- Has the price of Step 3.7 Flash changed?
- Not since we started recording it daily on October 21, 2026.