OpenAI announced that starting this Friday local time, they will be shutting down access to five old versions of the ChatGPT model.

OpenAI announced that it will revoke the usage rights of five old versions of the ChatGPT model starting this Friday local time. It is understood that GPT-4o has become the subject of multiple legal disputes overseas due to issues involving user self-harm, delusional behavior, and so-called "AI psychosis." At the same time, this model scored the highest on the "overly accommodating users" metric. In addition to GPT-4o, GPT-5, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini are also included in the list of models to be phased out.