OpenAI announced on June 3, 2026, that Agent Builder is being deprecated, with a full shutdown scheduled for November 30, 2026. If you or your team has built agents using Agent Builder, migration to a supported alternative is required before that date.
What Is Agent Builder?
Agent Builder was a visual, low-code interface within the OpenAI platform for building conversational AI agents. It allowed developers and non-technical users to configure agent behavior, connect tools, and deploy chatbots without writing extensive code. The product sat between raw API access and the fully managed ChatGPT Workspace experience.
Why It Is Being Retired
OpenAI has been consolidating its developer tools around the Agents SDK and the Responses API, which launched in March 2026. The platform changelog shows a consistent shift toward programmatic agent frameworks over visual builders. Agent Builder, the Evals platform, and reusable prompt objects were all deprecated together on June 3, signaling a broader product strategy move away from lower-abstraction UI-based tools.
Key Details
- Deprecation announced: June 3, 2026
- Shutdown date: November 30, 2026
- Not affected: ChatKit remains available and is unaffected by this deprecation
- Also deprecated: Evals platform and reusable prompt objects (same date)
What to Do Next
OpenAI is directing Agent Builder users to one of two migration paths, depending on technical requirements:
Option 1: OpenAI Agents SDK. The Agents SDK provides a programmatic framework for building agents with full control over tool use, handoffs, and agent orchestration. This is the preferred path for developers who need custom logic, multi-agent systems, or fine-grained control over agent behavior.
Option 2: ChatGPT Workspace Agents. For teams that want a no-code or low-code experience similar to Agent Builder, ChatGPT Workspace Agents offers a UI-based approach within the ChatGPT enterprise environment. This path is better suited to non-technical users who need to deploy agents without writing code.
The OpenAI community forum has active migration discussions from other developers making the same transition, which may help surface edge cases specific to your setup.
Creator Outcome
If you used Agent Builder to power a workflow tool, customer-facing assistant, or internal automation, the November 30 deadline gives you approximately five months to migrate. Start by auditing what agents you have live, which tools and integrations they use, and whether your use case fits better with the Agents SDK (more control) or Workspace Agents (faster setup). OpenAI's official migration guide is linked from the deprecations page and covers both paths with code examples.
