Step 3.7 Flash pricing
Source: openrouter · updated 2026-10-28
Short answer: Step 3.7 Flash costs $0.200 per million input tokens and $1.15 per million output tokens. That is a 3:1 blended rate of $0.438 per million tokens, ranking it #227 of 713 tracked models by input price.
Price breakdown
| Metric | USD |
|---|---|
| Input, per 1M tokens | $0.200 |
| Output, per 1M tokens | $1.15 |
| Output รท input multiple | 5.75× |
| 3:1 blended, per 1M tokens | $0.438 |
| Context window | 262,144 tokens |
What a typical workload costs
| Monthly volume | Input cost | Output cost | Total | 1M in / 250K out | $0.200 | $0.287 | $0.487 |
|---|---|---|---|---|---|---|---|
| 10M in / 2.5M out | $2.00 | $2.88 | $4.88 | ||||
| 100M in / 25M out | $20.00 | $28.75 | $48.75 |
Other stepfun models
| Model | Input | Output |
|---|---|---|
| Step 3.5 Flash | $0.100 | $0.300 |
| Step 5 Preview | $1.00 | $2.70 |
Compare against
Cheaper alternatives
Next cheaper option: Minimax 01 at $0.200 per 1M input tokens. Next step up: Minimax M2 at $0.255 per 1M input tokens.