OpenAI has introduced the o3 and o4-mini models, which enhance reasoning and tool usage capabilities in ChatGPT. These models can perform complex tasks by chaining multiple tool calls and have undergone rigorous safety evaluations, remaining below the high-risk threshold across various categories.
OpenAI has launched the GPT-OSS models, including a 120 billion parameter mixture-of-experts model designed for flexibility and safety in open-source applications. The models are available for free download, and OpenAI promotes industry collaboration through a Red Teaming Challenge to identify safety issues in AI.