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 models that power products like chatbots, image and video generators.

It’s the first such models it’s launched in over five years, as pressure in the US grows to respond to China’s dominance in open models.

OpenAI launched a pair of open weight models today, which can compete with other open models such as Google's (NASDAQ:GOOG)(NASDAQ:GOOGL) Gemini CLI and DeepSeek's (DEEPSEEK) R1 model. OpenAI's new open weight foundation models are called gpt-oss-120b and gpt-oss-20b.

Living up to its name, OpenAI has released not one but two new open-weight AI models after promising to deliver a new open-weight model earlier this year. The two models, gpt-oss-20b and gpt-oss-120b,