GitHub has accidentally announced OpenAI’s new range of GPT-5 models. A now-deleted GitHub blog post reveals that GPT-5, which will be available in four different versions, offers “major improvements in reasoning, code quality, and user experience.”

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.