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It Costs So Much to Run ChatGPT That OpenAI Is Losing Money on $200 ChatGPT Pro Subscriptions
(futurism.com)
If you can't even make a buck torching the planet so people don't have to write their own emails, how do you live? 
They are probably lying to make their $200 Pro subscription seem more appealing
They have to be rolling in the cost of buying new servers or something.
No way it costs 1k in electricity, cooling, etc.