Reasoning Agents
| Operator Operator is an AI agent OpenAI released on 23 January 2025 that works in a web browser by looking at screenshots and using a mouse and keyboard. Its abilities were folded into ChatGPT agent in July 2025. | |
| Deep research (ChatGPT) Deep research is a research agent in ChatGPT, released by OpenAI on 2 February 2025 and built on a version of o3, that searches the web and turns many sources into a written report. | |
| Gemini Deep Research A feature in the Gemini app that plans multi-step web research, gets the user's approval, browses for a few minutes and returns a report with links to its sources; later offered to developers as a managed agent in the Gemini API. |