OpenAI has highlighted GPT-5's ability to create software in its entirety and demonstrate better reasoning capabilities - with answers that show workings, logic and inference. The company claims it has been trained to be more honest, provide users with more accurate responses and says that, overall, it feels more human. According to Altman, the model is "significantly better" than its predecessors. "GPT-3 sort of felt to me like talking to a high school student... 4 felt like you're kind of talking to a college student," he said in a briefing ahead of Thursday's launch. "GPT-5 is the first time that it really feels like talking to an expert in any topic, like a PhD-level expert."