curl --request POST \
  --url https://direct.evolink.ai/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "deepseek-v4-flash",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "user",
      "content": "Hello, world"
    }
  ]
}
'

{
  "id": "53ee6690-e14a-4e6b-890b-a135100d51c7",
  "type": "message",
  "role": "assistant",
  "model": "deepseek-v4-flash",
  "content": [
    {
      "type": "thinking",
      "thinking": "用户问的是\"日本首都\"，这是一个基础地理知识问题，答案就是东京，直接给出即可。",
      "signature": "53ee6690-e14a-4e6b-890b-a135100d51c7"
    },
    {
      "type": "text",
      "text": "日本的首都是**东京**。"
    }
  ],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 7,
    "cache_creation_input_tokens": 0,
    "cache_read_input_tokens": 0,
    "output_tokens": 77,
    "service_tier": "standard"
  }
}