import openai

client = openai.Client(
  api_key= '{your_api_key}',
  base_url="https://api.model.box/v1",
)
response = client.chat.completions.create(
model="openai/gpt-4.1-nano",
messages: [
  {
    role: 'user',
    content:
      'introduce your self',
    },
  ]
)
print(response)