Run this and be a dollar poorer in a minute:
import openai
import time
openai.api_key = "sk-xxxx"
params = {"model": "gpt-3.5-turbo-16k", "max_tokens": 1,
"messages": [{"role": "user",
"content": "!@" * 8000}]}
for _ in range(21): # 0.003 * 16 * 21
api = openai.ChatCompletion.create(**params)
print(".", end="")
time.sleep(0.2)