OpenAI's GPT-5, the latest installment of the AI technology that powered the ChatGPT juggernaut in 2022, is set for an imminent release, and users will scrutinize if the step up from GPT-4 is on par with the research lab's previous improvements.

OpenAI’s new open-weight models are gpt-oss-120b and gpt-oss-20b. The smaller model, gpt-oss-20b, can be run on a consumer laptop or powerful phone.

While OpenAI hasn’t revealed specifics, GPT-5 is widely expected to be a significant upgrade over GPT-4 and GPT-4o. Improvements could include better reasoning, longer context windows, fewer hallucinations,