The two new OpenAI models are the first open models OpenAI has released since GPT-2, which was released in 2019. OpenAI’s larger model, gpt-oss-120b, can run on a single GPU, and the second, gpt-oss-20b, is small enough to run directly on a PC, the company said.

OpenAI said on Tuesday it has released two open-weight language models that excel in advanced reasoning and are optimized to run on laptops with performance levels similar to its smaller proprietary reasoning models.

OpenAI has unveiled two open‑weight language models designed to deliver advanced reasoning capabilities on consumer hardware, including laptops and desktops. Released August 5, these are OpenAI’s first models with publicly available parameters since GPT‑2 in 2019, marking a strategic pivot toward transparency and accessibility.