Step 3.7 Flash API Pricing
StepFun · released 2026-05-29
Also searched as: 3.7 Flash pricing
Step 3.7 Flash price
0.020¢ / 1K
0.121¢ / 1K
0.045¢ / 1K
China-region price; check the official site; Single public source; verify on the official site
Official list price from StepFun, as recorded by models.dev
Official price changed on 2026-11-06: input $0.185 → $0.2018 (+9.1%) · output $1.11 → $1.2105 (+9.1%) per 1M tokens. All official price changes
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | 0.0464¢ |
| RAG query | 4,000 in / 500 out | 0.141¢ |
| Long document summary | 50,000 in / 1,000 out | $0.0113 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | 0.847¢ |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $13.92 |
Cost = (input tokens ÷ 1,000,000 × $0.2018) + (output tokens ÷ 1,000,000 × $1.2105).
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | No public data yet | ||
| Epoch Mock AIME accuracy | No public data yet | ||
| Epoch FrontierMath (T1–3) accuracy | No public data yet | ||
| Arena text rating | No public data yet | ||
| Arena coding rating (human preference votes, not task accuracy) | No public data yet | ||
| Arena math rating | No public data yet | ||
| Arena WebDev rating | No public data yet | ||
More from StepFun
| Model | Released | Blended $/1M |
|---|---|---|
| Step 5 Preview | 2026-09-16 | $1.5318 |
| Step 3.5 Flash 2603 | 2026-04-02 | $0.1569 |
| Step 3.5 Flash | 2026-01-29 | $0.1569 |
Count tokens & estimate cost for Step 3.7 Flash
Prices: StepFun's official list price as recorded by models.dev; benchmarks: see sources below; last synced 2026-11-06.
FAQ
Who develops Step 3.7 Flash?
Step 3.7 Flash is developed by StepFun, released 2026-05-29.
How much does Step 3.7 Flash cost per million tokens?
Step 3.7 Flash costs $0.2018 per 1M input tokens and $1.2105 per 1M output tokens ($0.4539 blended), per StepFun's official list price as recorded by models.dev.
What is the Step 3.7 Flash API price?
The Step 3.7 Flash API price is $0.2018 per 1M input tokens and $1.2105 per 1M output tokens ($0.4539 per 1M blended).
How much does Step 3.7 Flash cost for a typical request?
A short chat reply (500 in / 300 out tokens) costs about 0.0464¢ on Step 3.7 Flash, at $0.2018/1M input and $1.2105/1M output.
Is Step 3.7 Flash free?
Step 3.7 Flash's official API list price is $0.2018 per 1M input tokens and $1.2105 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check StepFun's site for those.
Where does this data come from?
Pricing for Step 3.7 Flash comes from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 licenses) — see /data-sources/. Last synced 2026-11-06.