What is ChatGPT Agent mode?
ChatGPT Agent mode was a ChatGPT feature designed to take steps toward completing a task—not just respond with text. In its original announcement, OpenAI described it as handling complex tasks using its own computer, with examples including research, form filling, code, and document creation. (OpenAI’s original announcement)
There’s an important update: OpenAI’s Help Center now says ChatGPT agent is no longer available and directs users to ChatGPT Work for longer, multi-step tasks and finished deliverables. (OpenAI Help Center) “Agent mode” refers to the earlier ChatGPT experience. ChatGPT Work is the current direction OpenAI identifies for this kind of work; building an agent into your own product is a separate developer/API decision.
What does an agent do differently from ordinary chat?
In an ordinary chat, you ask for information or a draft and ChatGPT responds. An agent-style workflow is meant to move through several steps toward a goal: gather information, use available tools, and return a result. OpenAI’s original Agent announcement gave examples such as researching competitors and creating a slide deck. (Original announcement)
For ChatGPT Work specifically, OpenAI’s cloud-browser guidance describes a browser that can read web pages, click buttons, enter information in forms, and carry out steps on supported websites. (ChatGPT Work cloud-browser guidance) These descriptions refer to different product contexts; historical Agent capabilities should not be assumed to be identical to ChatGPT Work’s current tools or workflows.
For example, a person might ask for a comparison of several products and a summary in a spreadsheet. An agent-style system could gather information, organize it, and prepare a file. That describes the task pattern—not a promise that every site will work, every detail will be correct, or no review will be needed.
When is this kind of feature useful?
It may be useful when a task has several connected steps and the result is easier to review than to assemble manually—for example, gathering research and turning it into a draft report. It is a weaker fit when you need a guaranteed result, when a mistake could have serious consequences, or when a workflow depends on a website or account the agent cannot access.
For the retired ChatGPT agent, OpenAI’s Help Center described safeguards including confirmations for high-impact actions and prompt-injection monitoring, while noting that safeguards do not eliminate all risks. Those statements describe the retired Agent feature; they should not be read as documentation of ChatGPT Work’s controls. (ChatGPT agent Help Center)
Practical rule: use agentic features to help with supervised, multi-step work; check important facts and outputs yourself; and be especially careful before granting access to sensitive accounts or approving consequential actions.
Is ChatGPT Agent mode the same as a production API agent?
No. Using an agent-style feature inside ChatGPT is different from building an agent into your own application. OpenAI describes the Agents API as a beta for developers building applications with an OpenAI-managed Codex agent. The agent can work across multiple steps and continue in the same session; your application supplies the task, tools, and configuration. (Agents API beta FAQ)
That is a developer API offering, not the retired ChatGPT Agent mode itself. If you’re considering an integration, consult the current Agents API documentation for details relevant to your application rather than relying on descriptions of the retired ChatGPT feature.
Bottom line: ChatGPT Agent mode was OpenAI’s name for a tool-using ChatGPT feature designed to work through multi-step tasks. OpenAI now says it is no longer available and points users to ChatGPT Work. The Agents API is a separate developer option for building applications with an OpenAI-managed Codex agent.
Sources
ChatGPT agent — OpenAI Help Center
Introducing ChatGPT agent — OpenAI