OpenAI has begun rolling out GPT-5, the latest iteration of its flagship language model, to all ChatGPT users.

OpenAI has announced that it has released its “smartest, fastest, most useful model yet” — GPT-5. The new model is reported to be a “significant upgrade” compared to its predecessors GPT3 and GPT4, which will be deprecated following the release.

If you're wondering what all the hoopla is about, and what makes GPT-5 better, or different, than the company's previous AI models, here's a quick run down of some of the key new features and functionality.