OpenAI on Thursday released GPT-5, unveiling a new version of the artificial intelligence model that fuels popular chatbot ChatGPT. The announcement comes days after the company said ChatGPT is set to reach 700 million weekly active users, up from 500 million just five months ago.

ChatGPT-maker OpenAI has unveiled the long-awaited latest version of its artificial intelligence (AI) chatbot, GPT-5, saying it can provide PhD-level expertise. Billed as "smarter, faster, and more useful," OpenAI co-founder and chief executive Sam Altman lauded the company's new model as ushering in a new era of ChatGPT.

The engine behind ChatGPT has long been expected to get a revamp. Close followers of OpenAI's model releases are probably tired of hearing about GPT-5, the next big step in the company's line of flagship large language models. It's been expected seemingly all year. But the hints are getting very strong.