For months, OpenAI Chief Executive Officer Sam Altman has been hyping up the capabilities of GPT-5, setting up the launch as a seminal moment for the company. But in the first 24 hours after its release,

GPT-5 is OpenAI’s latest, and now flagship, AI model. This new version is now the default system for a range of AI chatbots. OpenAI says GPT-5 is much more intelligent that the previous GPT-4 mode, with major improvements in complex front-end generation.

GPT-5 was touted as a major upgrade to ChatGPT, but not everyone thinks that’s the case: “Kill 4o isn’t innovation, it’s erasure.”

On a call with reporters Wednesday previewing the new chatbot, Altman likened GPT-5 to a Ph.D.-level expert. The new chatbot is also "the biggest single step forward" that OpenAI has taken in worldwide accessibility, Altman said.

I took ChatGPT's upgraded advanced voice mode for a spin to see if it was useful or just all talk. Katelyn is a writer with CNET covering artificial intelligence, including chatbots, image and video generators.

The new version of ChatGPT explains why it won’t generate rule-breaking outputs. WIRED’s initial analysis found that some guardrails were easy to circumvent.

OpenAI has released GPT-5, the latest version of the AI technology behind ChatGPT. This update is being closely watched to see if the frontier of generative AI is advancing or plateauing.

The A.I. start-up said its new flagship technology was faster, more accurate and less likely to make stuff up.

It has only been five days since OpenAI's GPT-5 model was released — and we've been given countless reasons to conclude it's a dud.

While OpenAI’s GPT-5 is highly-performant, capable and an important step forward, it features just faint glimmers of true agentic AI.