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I Accidentally Spent $400 on GPT-4o in One Month. Here's How to Never Do That.
花了400美元才学会的GPT-4o API省钱血泪教训，3分钟掌握避坑方法
Last year I deployed a GPT-4o powered support chatbot for a small SaaS. Traffic was modest — maybe 500 active users. I checked the OpenAI bill at the …