OpenAI has been open about their ability to predict model performance prior to training. When Sam talks about GPT-5 he could very easily be talking about the hypothetical performance of a model given their internal projections. I think it’s very unlikely a fully trained GPT-5 exists yet.

Sam has stated that he knows the month GPT-5 will be released.

Given the amount of time and uncertainty involved in training and red-teaming these models, we can assume GPT-5 exists if we take Altman at his word.

It’s going to be launched this year. My buddy’s company had a private demo of gpt5