Does StepFun have an overseas node?

No. StepFun serves traffic from mainland China infrastructure only. Access from outside China may be affected by the Great Firewall or cross-border latency.

What API formats does StepFun support?

StepFun exposes openai-compatible endpoints, so existing client SDKs (openai-python, openai-node, LangChain, etc.) work with a base-URL swap.

What payment methods does StepFun accept?

StepFun accepts alipay, wechat. Check the provider's billing docs for mainland vs. international top-up rules.

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LLM API·China

StepFun

Step series from StepFun — trillion-parameter-class Chinese MoE models

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Founded: 2023
Headquarters: China
Price range: —
API format: openai

About StepFun

StepFun (阶跃星辰) trains very-large-scale MoE models — Step-1 (lightweight), Step-2 (trillion-parameter-class MoE), Step-1V / Step-1.5V for vision. Research-lab pedigree with a practical API billing surface.

Pros

+OpenAI-compatible API: openai — drop-in for existing SDK users
+Established 3+ years (founded 2023)

Cons

−No overseas node — mainland China access only; GFW affects foreign users
−Payments only via alipay, wechat — may block non-China billing

Products (0)

No public products listed.

Frequently asked questions

Does StepFun have an overseas node?: No. StepFun serves traffic from mainland China infrastructure only. Access from outside China may be affected by the Great Firewall or cross-border latency.
What API formats does StepFun support?: StepFun exposes openai-compatible endpoints, so existing client SDKs (openai-python, openai-node, LangChain, etc.) work with a base-URL swap.
When was StepFun founded?: StepFun was founded in 2023.
What payment methods does StepFun accept?: StepFun accepts alipay, wechat. Check the provider's billing docs for mainland vs. international top-up rules.