GPT-5

Summary from the TLDR newsletter

GPT-5 rarely screws up and generally feels competent. The model used in ChatGPT is a hybrid that switches between different models. GPT-5 is available as three models in the API: regular, mini, and nano. Each can be run at one of four reasoning levels. This post looks at the key characteristics of the models, how they are priced, and what can be learned from the GPT-5 system card.