Users have been complaining the GPT-4o has become so enthusiastic that it's verging on sycophantic. The change appears to be the unintentional result of a series of updates, which OpenAI is now attempting to resolve "asap.

The response from Altman regarding ChatGPT's sycophantic tone shows the importance of listening to your customers—and getting AI's voice right.

The personality of a chatbot is a fundamental aspect that shapes user experience. If users find it “annoying” they are less likely to get the full benefits of the chatbot anyway. That's why it's important that OpenAI is tweak the new personality and that users can take matters into their own hands to customize it themselves.