GPT-3 arrived in May 2020 but was quickly snatched up by Microsoft that September with a licensing scheme that gives Microsoft exclusive use of that model. The GPT-3.5 model is a subset of ...

GPT-4.5, which has been internally referred to as “Orion,” will be the first major release in OpenAI’s updated roadmap. Altman has described it as the last non-chain-of-thought model, meaning that it ...

OpenAI wants everyone to experience its GPT-5 model and the o3 reasoning by simplifying what they have to offer.