This issue covers what's changing with custom GPTs ahead of the December 11 retirement, how to keep an AI setup from depending on one provider, and a new security log worth a check as Q4 planning ramps up.
5 min Read time |
September 29, 2026 Published |
If a custom GPT is running somewhere in the business โ a version of ChatGPT trained on the menu, the policies, the FAQ โ that setup is changing. OpenAI is retiring custom GPTs on December 11, and whatever got built inside that format needs a new home before then.
This is worth treating as a nudge, not a fire drill. The bigger lesson sitting underneath it: anything built entirely inside one vendor's format can move, get renamed, or disappear on their timeline, not yours. A little documentation now โ what the GPT actually does, what instructions it runs, what files it reads โ turns the next move, whenever it comes, into a copy-paste job instead of a rebuild.
Dec 11 date custom GPTs retire | 73 days runway from late September to move what's built | $0 cost to self-host a provider-agnostic chat tool |
OpenAI is winding down custom GPTs on December 11. Twister Hub AI News breaks down what happens to the ones already built and what to do before the date.
What this means for you: Anyone running a custom GPT for FAQs, onboarding or internal reference now has a firm date to plan around, not a surprise to react to later.
Read more โA look at what it actually takes to keep an AI setup portable, so a change on one company's end doesn't mean starting from scratch.
What this means for you: Worth reading alongside the GPT retirement news โ it's the same problem, just in a bigger frame.
Read more โEvery ChatGPT account now has a log showing sign-ins and account activity, similar to what banks and email providers already show.
What this means for you: A two-minute check worth building into a regular routine, especially on accounts shared across a team.
Read more โA self-hosted chat interface that connects to OpenAI, Anthropic, Google and other AI providers from one place.
1. Open each custom GPT currently in use and copy its full instructions into a plain text document.
2. Download or copy any knowledge files it references โ PDFs, FAQs, policy docs โ and save them outside of ChatGPT.
3. Ask ChatGPT to summarize what the GPT does in plain language, so anyone else on the team could pick it up later.
4. Put a date on the calendar before December 11 to rebuild it in ChatGPT's newer format or an alternative tool.
PARTNER
Worth a look before renewing anythingQuponing rounds up discount codes for the everyday business software already in use โ a quick search before the next renewal takes about a minute. |
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If December 11 is more than one person can sort through alone, we go through what's built, what's worth keeping, and where it lands next.
Book a free strategy call โ
Nothing here is urgent today. December 11 gives plenty of runway. Still, a quiet afternoon copying instructions out of ChatGPT beats a scramble once the fall rush picks up.
With Your Success in Mind,
Skeeter
Founder, Twister Hub AI
AI Solutions by Twister Hub AI
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