ChatGPT GPT-4o just got an upgrade that everyone immediately hated

In addition to releasing new models with improved AI, OpenAI also routinely upgrades the base AI model that most people chat with regularly. That's GPT-4o, the model OpenAI launched last May with multimodal support, which is the ability to handle all sorts of data in a prompt in addition to text.

Upgrading the base model is always good news. It should lead to better performance for your regular chats with the AI, though OpenAI isn't always that transparent about those improvements.

Take late Friday's mysterious GPT-4o upgrade...