OpenAI launched its most advanced language model Thursday with the release of GPT-5, a flagship product the company says will enhance ChatGPT as it reportedly nears a $500 billion valuation and aims to stave off competitors in Google, Anthropic and more.

C lose 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.

For the first time in five years, OpenAI has released two new free and open-source AI models that are lightweight and designed to be easily integrated into other software programs.