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's ChatGPT agent merges the strengths of its previous models, Operator and deep research, enabling it to interact with the web for more effective information gathering and task execution. With enhanced features like a visual browser and API access, the agent can perform complex tasks while prioritizing user safety through measures against adversarial manipulation.