Hy4 preview

// OpenRouter speaks the OpenAI Chat Completions format.
const res = await fetch("https://openrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OPENROUTER_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "tencent/hy4-preview",
    "messages": [
      {
        "role": "user",
        "content": "Read this error and explain the most likely cause in three sentences: <paste error>"
      }
    ],
    "reasoning": {
      "effort": "low"
    }
  }),
});
const data = await res.json();
console.log(data.choices[0].message.content);