They really lied in front of all our faces and we believed them.

https://www.lpcentre.com/news/openai-ends-chatgpt-four-api

"an OpenAI spokesperson confirmed that the timeline discussed applies only to the API, and there is no schedule for the removal of GPT-4o from ChatGPT, which remains accessible to individual users and paid subscribers."

And yet the 4o in ChatGPT got sunset before the actual API. They were planning to sunset 4o a long time ago, just wanted to get more user data, and of course, give you a slap on the face for believing them.