This is amazing! Isn't OpenAI's business model exactly the same as public chains like Ethereum? OpenAI is encouraging developers to integrate the 'Sign in with ChatGPT' feature. When users log in with their ChatGPT accounts and use AI features in the app, the 'AI inference costs' originally borne by developers might now be shifted to the users' own accounts. Isn't the Gas fee for on-chain applications paid by users anyway...