/v1/chat/completions

curl -X POST \
  "https://api.openai.com/v1/chat/completions" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4",
    "messages": [
      {
        "role": "user",
        "content": "Hello, how are you?"
      }
    ],
    "temperature": 0.7
  }'

"messages": [
      {
        "role": "system",
        "content": "You are a helpful assistant."
      },
      {
        "role": "user",
        "content": "Explain quantum computing in simple terms"
      }
    ],

{
  "id": "chatcmpl-xxxxxx",
  "object": "chat.completion",
  "created": 1234567890,
  "model": "gpt-3.5-turbo",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hello! I'm doing well. How can I assist you today?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 14,
    "total_tokens": 23
  }
}