What changed · Oct 1, 2026

Custom GPTs retire Dec 11. Save yours now.

If your business built custom GPTs for quotes, SOPs or customer replies, they stop working on December 11, 2026. Instructions and knowledge files can move to plugins. Custom actions and conversations do not.

Check which tools you pay for

What changed

The dates and facts.

DEC 11, 2026

Custom GPTs are retired.

OpenAI plans to retire custom GPTs on December 11, 2026. Enterprise workspaces with an approved deferral can keep using them until February 11, 2027.

OCT 26, 2026

New GPT creation ends in affected Enterprise workspaces.

OpenAI's current target for ending creation of new custom GPTs in affected Enterprise workspaces is October 26. Rollout dates and workspace notices may differ, so check your own account.

WHAT MOVES

Instructions and knowledge files can migrate.

Published instructions and knowledge files can migrate to plugins through a "Migrate to plugin" option in My GPTs once it reaches your account. Custom actions (connections to other apps), existing conversations and sharing settings do not transfer; anyone who uses a GPT today needs a fresh invitation to the replacement.

What to do

Steps for a small team.

01 / LIST

List every GPT your team uses.

Write down the name, owner, job (quotes, SOPs, customer replies), who it is shared with, and whether it uses custom actions.

02 / SAVE

Copy the instructions and save test prompts.

Keep the instructions text and the knowledge files outside ChatGPT. Save 3 to 5 prompts with the answers you consider good, so you can test any replacement.

03 / PUBLISH

Publish drafts you still need.

Copy out any unpublished changes so nothing lives only in an editor. If your workspace is affected, do this before the Oct 26 creation stop.

04 / DECIDE

Migrate to a plugin or pick a replacement before Dec 11.

If a GPT depends on custom actions, plan to rebuild that connection. If it only holds instructions, migration may be enough. Retire the ones nobody used.

Sources, checked Oct 1, 2026

Dates and limits can change and vary by workspace and contract. Confirm them in your own admin console or with your provider. See corrections.