Open weights models are related to, but not the same as, open source AI. Despite the company's name, OpenAI hasn't dropped an open version of its AI models since GPT 2 in 2019. That changed on Tuesday, as CEO Sam Altman shared two new open weights, reasoning AI models, named gpt oss 120b 120 billion parameters and gpt oss 20b 20 billion parameters. If open weights is a new piece of AI jargon to you, don't worry. In the simplest possible terms, open weights is a category of AI...
