Panicked about losing GPT-4o, some ChatGPT users are building DIY versions. A psychologist explains why ‘feel-good hormones’ make it hard to let go

ChatGPT users concerned about GPT-4o's discontinuation are building DIY alternatives. A psychologist explains how "feel-good hormones" create attachment to the model. Dedicated fans are urging OpenAI to keep GPT-4o available, highlighting the emotional bonds users develop with AI tools and the psychological difficulty of letting go.