OpenAI, the makers of ChatGPT, have performed something of an about-face after fans were upset that it deleted the older models to only allow users to use the new GPT-5 model. What happened? The ...

Yesterday OpenAI released GPT-5, the latest model update to ChatGPT. More than 24 hours later, the new model is still rolling out to paid and free customers. Meanwhile, OpenAI is reconsidering the ...

OpenAI is bringing back GPT-4o in ChatGPT just one day after replacing it with GPT-5. In a post on X, OpenAI CEO Sam Altman confirmed that the company will let paid users switch to GPT-4o after ...

OpenAI’s ChatGPT models have shown a sharp jump in accuracy on a high-stakes medical licensing exam, with newer versions ...

OpenAI is once again making GPT-4o — the large language model (LLM) that powered ChatGPT before last week’s launch of GPT-5 — a default option for all paying users, that is, those who subscribe to the ...

Deepfake X-rays created by AI are now convincing enough to fool both doctors and AI models. In tests, radiologists had ...

ChatGPT isn’t allowed to call you a jerk. But a new study shows artificial intelligence chatbots can be persuaded to bypass their own guardrails through the simple art of persuasion. Researchers at ...

GPT-5 is still very fresh, but it still somehow feels like it’s been around for a while — all because of the uproar that followed the launch. Many ChatGPT users had something to say about it, and ...

Sam Altman's OpenAI says it's finally killing GPT-4o, the famously "sycophantic" version of ChatGPT, despite a backlash from emotionally attached users.Florian Gaertner/Photothek via Getty Images ...

OpenAI is killing its ultra-popular GPT-4o and several of its older models -- for real this time. The AI company announced at the beginning of February that it planned to retire GPT-5, GPT-4o, GPT-4.1 ...