Step 5 Preview API pricing
As of October 21, 2026, StepFun Step 5 Preview costs $1.00 per million input tokens and $2.70 per million output tokens through OpenRouter, with cached input at $0.10 per million.
Step 5 Preview benchmarks and specs · Every StepFun model's price
- Input, per million tokens$1.00
- Output, per million tokens$2.70
- Cached input, per million$0.10
- Context window1.05M tokens
- Max output64K tokens
- Output speed88 tok/s
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 | $0.0024 | $2.35 | Yes |
| Repository review | 50K input + 3K output tokens | $0.058 | $58.10 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.227 | $227.00 | Yes |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We read this price every day and have since October 15, 2026. It has not changed yet; any change will be listed here with its date.
- October 15, 2026 First recorded: $1.00 input, $2.70 output
Cheaper models as good as Step 5 Preview
Models within two points of Step 5 Preview or above it on the Artificial Analysis Intelligence Index, with a lower output price. Cheapest first.
Step 5 Preview pricing questions
- How much does Step 5 Preview cost per million tokens?
- $1.00 per million input tokens and $2.70 per million output tokens, as listed on OpenRouter on October 21, 2026.
- Does Step 5 Preview support prompt caching?
- Yes. OpenRouter lists cached input at $0.10 per million tokens, against $1.00 for uncached input.
- Is there a cheaper model as good as Step 5 Preview?
- Claude Haiku 5.5 scores 43.4 on the Artificial Analysis Intelligence Index, within two points of Step 5 Preview or above it, and costs $0.50 per million output tokens.
- Has the price of Step 5 Preview changed?
- Not since we started recording it daily on October 15, 2026.