离开 Helicone，不假装这件事很简单

import OpenAI from "openai";

// Before: the OpenAI SDK through Helicone's gateway, attribution in headers.
const sessionId = "sess_42";
const client = new OpenAI({
  baseURL: process.env.HELICONE_BASE_URL ?? "https://ai-gateway.helicone.ai",
  apiKey: process.env.HELICONE_API_KEY,
  defaultHeaders: {
    "Helicone-User-Id": "user_8f21",
    "Helicone-Session-Id": sessionId,
    "Helicone-Property-Feature": "summarizer",
  },
});

const completion = await client.chat.completions.create({
  model: "gpt-5.4-mini",
  messages: [{ role: "user", content: "Summarize this ticket in one line." }],
});
console.log(completion.choices[0]?.message.content);

import OpenAI from "openai";

// After: the same SDK through INFRO, on your own OpenAI account.
const sessionId = "sess_42";
const client = new OpenAI({
  baseURL: process.env.INFRO_BASE_URL ?? "https://api.infro.io/v1",
  apiKey: process.env.INFRO_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "openai/gpt-5.4-mini",
  messages: [{ role: "user", content: "Summarize this ticket in one line." }],
  // Attribution moves from headers into the body. Recorded on the request,
  // never forwarded to the provider.
  metadata: {
    user_id: "user_8f21",
    session_id: sessionId,
    feature: "summarizer",
  },
});
console.log(completion.choices[0]?.message.content);