headers = {
    "Authorization": f"Bearer {API_KEY}",
    "Content-Type": "application/json"
}

 
# 2. 调用模型
def chat(model='gpt-5.4-px'):
    url = f"{BASE_URL}/chat/completions"
    payload = {
        "model": model,
        "messages": [
            {"role": "user", "content": "你好"}
        ]
    }
    resp = requests.post(url, headers=headers, json=payload, timeout=60)
    try:
        print(r...