StepFun API
Developer API for StepFun (阶跃星辰) Step-1/2 multimodal and reasoning LLM series.
Our Verdict
Capable Chinese multimodal API for APAC workloads, not yet a serious option for global teams.
Pros
- Strong multimodal models in Step-1/2
- Competitive price per token in China
- Reasoning variants available
Cons
- Limited English documentation
- China hosting blocks regulated use
- Brand recognition outside China is low
Best for: Chinese-market apps needing multimodal and reasoning at local pricing
Not for: Global apps sending regulated data or needing English-first support
When to Use StepFun API
Good fit if you need
- Accessing Step-2 frontier LLM for complex reasoning tasks
- Building long-context AI apps with Step's native 256K context
- Running multimodal understanding tasks via Step's vision model
- Deploying cost-competitive frontier LLM inference in China
Pricing
Price wrong?StepFun API Pricing
- Pricing Model
- usage
- Free Tier
- No
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
1,000
1001K10K100K1M
10,000
1K10K100K1M10M
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Lock-in Assessment
Medium 3/5
Lock-in Score 3/5
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