StepFun: step-3.5-flash

关于 step-3.5-flash

StepFun step-3.5-flash：纯文本推理模型，256K 上下文，适用于逻辑、数学、软件工程和深度研究。推理深度可按请求选择（low、medium、high），并支持工具调用、JSON Schema 结构化输出、流式输出和提示词缓存。

快速开始

可直接复制的 API 请求

curl -X POST https://api.chinaapi.ai/v1/chat/completions \
  -H "Authorization: Bearer $CHINAAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "step-3.5-flash",
    "messages": [
      {"role": "user", "content": "Summarize the main tradeoffs for this API workload."}
    ]
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["CHINAAPI_API_KEY"],
    base_url="https://api.chinaapi.ai/v1",
)

response = client.chat.completions.create(
    model="step-3.5-flash",
    messages=[
        {"role": "user", "content": "Summarize the main tradeoffs for this API workload."}
    ],
)
print(response.choices[0].message.content)