Billed as “state-of-the-art,” the new OpenAI open-weight models were announced Tuesday in a company blog post. OpenAI says they "outperform similarly sized open models on reasoning, excel at tool use, and are optimized for efficient deployment on consumer hardware."

PT-OSS is OpenAI’s first open-weight model in six years. OpenAI is releasing a new open-weight model dubbed GPT-OSS that can be downloaded for free, be customized, and even run on a laptop.