I am a ChatGPT Plus user who has developed substantial custom GPTs and shared work-in-progress GPTs with selected testers/users. The announced migration to Plugins appears to remove a critical capability of that workflow.
Previous workflow
Creator → privately/shared GPT → selected user can use GPT → creator retains control of implementation → creator updates GPT centrally.
This is important not merely for casual sharing, but for developing proprietary workflows, beta testing them with individual users, and iterating before broader release.
Migration result
A migrated personal plugin starts private. OpenAI’s migration documentation states that GPT sharing settings do not transfer and existing users are not automatically given access to the replacement.
I created a disposable plugin specifically to test possible workarounds.
Test 1 — Personal plugin
The plugin works correctly for its owner. Its skill and instructions are visible to the owner through the plugin-management UI.
There is no apparent personal-plugin equivalent of the previous private/user sharing controls.
Test 2 — Access-code workaround
I created an access-code gate in the plugin skill. The gate works behaviorally, but this does not solve distribution because the personal plugin itself remains private. A password therefore cannot turn a private personal plugin into something selected external users can invoke.
Test 3 — Shared conversation
I invoked the private plugin and shared the resulting conversation with another user.
The recipient could see the plugin-generated conversation and continue it. The continued conversation even retained enough context to respond to the access-code interaction.
However, when the recipient attempted to invoke functionality from the plugin, ChatGPT reported that the functionality was not available in that chat. Sharing the conversation therefore did not grant executable access to the private plugin.
Result
A workflow that was possible with Custom GPTs does not currently appear reproducible with personal Plugins:
Creator owns implementation → selected external users can use it → users cannot edit/copy implementation → creator can update it centrally.
This is potentially a severe regression for independent developers, educators, consultants, researchers, and small businesses who used Custom GPTs to distribute proprietary or work-in-progress tools without operating their own infrastructure.
OpenAI already appears to have the required access model for workspace plugins: “Only those invited.” The missing capability is an equivalent sharing option for personal plugins.
Requested solution
Add Share plugin → Only those invited to personal plugins, ideally with the same distinction Custom GPTs had between Can chat/use and Can view settings.
Alternatively, provide an unlisted plugin option in which possession of the link permits installation/use without exposing the plugin’s source files.
This would preserve the practical Custom GPT workflow while allowing the underlying implementation to move to Plugins.
Why this is urgent
OpenAI currently says Custom GPTs are scheduled to retire December 11, 2026. Existing GPTs remain usable until then, but migrated GPTs become read-only, and OpenAI itself recommends testing replacement workflows before switching.
At present I cannot safely migrate important shared GPTs because I have no equivalent way to give their existing users access to the replacements.
This isn’t primarily a request to preserve the old GPT architecture. It is a request to preserve a fundamental distribution capability during the transition to the new architecture.