OpenBiliPortal

流式响应

POST /v1/chat/completions(stream: true)

在请求中设置 stream: true,服务端以 Server-Sent Events (SSE) 逐块返回内容。强烈建议在交互式场景启用 —— 首字等待时间可从 10 秒以上降低到 2–3 秒。

请求示例

cURL

curl https://api.openbili.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "claude-opus-4-8",
    "messages": [{"role": "user", "content": "写一首关于春天的短诗"}],
    "max_tokens": 1024,
    "stream": true
  }'

Python

import openai
 
client = openai.OpenAI(api_key="YOUR_API_KEY", base_url="https://api.openbili.com/v1")
 
stream = client.chat.completions.create(
    model="claude-opus-4-8",
    messages=[{"role": "user", "content": "写一首关于春天的短诗"}],
    max_tokens=1024,
    stream=True,
)
for chunk in stream:
    print(chunk.choices[0].delta.content or "", end="", flush=True)

Node.js

import OpenAI from "openai";
 
const client = new OpenAI({ apiKey: "YOUR_API_KEY", baseURL: "https://api.openbili.com/v1" });
 
const stream = await client.chat.completions.create({
  model: "claude-opus-4-8",
  messages: [{ role: "user", content: "写一首关于春天的短诗" }],
  max_tokens: 1024,
  stream: true,
});
for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0].delta.content || "");
}

流式返回格式

每个数据块以 data: 开头,内容是一个增量(delta)对象;流结束时返回 data: [DONE]。

data: {"id":"chatcmpl-...","object":"chat.completion.chunk","choices":[{"index":0,"delta":{"content":"春"},"finish_reason":null}]}

data: {"id":"chatcmpl-...","object":"chat.completion.chunk","choices":[{"index":0,"delta":{"content":"风"},"finish_reason":null}]}

data: [DONE]
字段 类型 说明
object string 固定为 chat.completion.chunk。
choices[].delta object 本块的增量内容(content / role / tool_calls)。
choices[].finish_reason string | null 结束原因;未结束为 null,结束为 stop 等。