OpenAI will release an open-source weight language model for the first time since GPT-2 in 2019

OpenAI founder Sam Altman announced that a "new open-source weight language model" with reasoning capabilities will be released in the coming months, but first wants to collect feedback on "how to maximize its utility."

An open-source weight language model refers to a model that can be publicly used, downloaded, modified or deployed. Although it is not as open as the full open source mode, it represents a significant shift compared to the completely closed GPT-3 and GPT-4. OpenAI partially opened up the GPT-2 model in February 2019 and completed full open sourcing in November of the same year. On February 12 this year, Sam Altman stated that the company plans to launch GPT-4.5 and GPT-5 within weeks or months.