Your custom GPTs switch off on 11 December. Here's where they can go.
OpenAI is retiring custom GPTs and replacing them with plugins. If you rely on GPTs at work, here is what is happening, what to save now, and how to move them somewhere they keep working, with any AI model.
What is happening
- OpenAI announced on 11 September 2026 that custom GPTs are being retired and replaced with plugins.
- On 11 December 2026, custom GPTs and their GPT pages become inaccessible. Some Enterprise and FedRAMP workspaces with an approved deferral have until 11 February 2027.
- Migrate to plugin in My GPTs copies a GPT's latest published instructions and knowledge files into a plugin. The original GPT then becomes read-only.
- Custom actions do not transfer. Anything your GPT did with another system needs rebuilding. Sharing permissions and past conversations do not move across either, though old conversations stay viewable.
Checked 14 November 2026. Sources: OpenAI: Custom GPT retirement and migration FAQ, Visual Studio Magazine, 28 Sep 2026.
Save these before 11 December, whatever you choose
- Open each GPT in ChatGPT, choose Edit, then Configure, and copy its name, description and instructions into a document.
- Download every knowledge file you gave it. There is no export file for a whole GPT.
- Write down its conversation starters.
- List any custom actions (connections to other systems). They do not carry over to plugins.
- Note who uses it, so you can share the replacement with the same people.
Two good options
If your team lives in ChatGPT, migrating to a plugin is the simplest path. If you want your GPTs to work with any model, for a whole team, here is how the two compare.
| ChatGPT plugin | Skill in Interweave OS | |
|---|---|---|
| Works with | ChatGPT | Claude, GPT, Gemini, Grok and more, switchable mid-chat |
| Instructions and knowledge files | Carried over by Migrate to plugin | Copied into a skill in a few minutes |
| Custom actions | Rebuilt as a connector or MCP server | Connected as an MCP server or a login the agent can use |
| Knowledge that stays current | Update the reference files | Drop a new file in the skill's folder |
| Picking it | Choose the plugin | The agent uses the skill by itself when a request matches |
| Who can use it | Depends on your ChatGPT plan | Just you, a team, or everyone in the organisation |
Move a GPT to Interweave OS in six steps
- In ChatGPT, open your GPT, choose Edit, then Configure.
- In Interweave OS, open Skills and make a new skill.
- Copy the GPT's name, description and instructions into the same boxes.
- Add its conversation starters as examples.
- Upload the files you gave the GPT as its knowledge.
- Choose everyone, a team or just you, and save. Then just ask; you never have to pick the skill.
Have lots of GPTs? Import from your other AIs gives you one prompt to paste into ChatGPT, and sorts the answer into your memory, projects and custom GPTs, ready for you to tick what to keep.
Get a reminder before the switch-off
We will email you before 11 December with the checklist, plus practical AI tips. Tick the waitlist too if you want Interweave OS for your team.
Questions people are asking
When do custom GPTs stop working?
OpenAI retires custom GPTs on 11 December 2026. From then, GPTs and their GPT pages can no longer be opened. Some Enterprise and FedRAMP workspaces with an approved deferral have until 11 February 2027.
Will I lose my old conversations with a GPT?
OpenAI says previous conversations with custom GPTs stay accessible after retirement. They do not move into the replacement automatically.
Can I export a custom GPT?
There is no export file. Copy the name, description and instructions by hand, and download the knowledge files you uploaded.
What replaces custom GPTs in ChatGPT?
Plugins. Migrate to plugin in My GPTs turns a GPT's instructions and knowledge files into a plugin. Custom actions do not transfer and need rebuilding.
Can I use my GPT with Claude or Gemini instead?
Yes. A GPT's instructions and files are plain text and documents, so they work as a skill in a platform that is not tied to one AI lab, such as Interweave OS, where any model can use them.
Give your GPTs a home that works with every model
Interweave OS is in private beta. Join the waitlist and we will be in touch as places open, with practical AI tips in the meantime.