retirements
Every record this desk has filed under retirements, newest first, each with the number of sources it can still show you.
OpenAI has scheduled custom GPTs to retire on December 11, 2026 across ChatGPT plans, and a rewrite of its migration FAQ that no release note mentions moved the Enterprise cutoff for creating new GPTs from September 25 to October 26 and removed a sentence saying migrated GPT links were planned to redirect to their replacements.
OpenAI's help center says custom GPTs are scheduled to retire on December 11, 2026, that the transition affects all ChatGPT plans, and that Enterprise workspaces with an approved deferral get until February 11, 2027. At retirement, GPTs and their pages become inaccessible. The replacement is a plugin: migration turns a GPT's instructions into a skill and copies its knowledge files, but custom actions, past conversations, sharing settings and the selected model do not carry over, and the original becomes read-only. This desk compared the migration FAQ as read on September 27 with Internet Archive copies from September 17, 18 and 25. Between September 16 and September 25 it was rewritten with no release-note entry: the Enterprise cutoff for creating new GPTs moved from September 25 to October 26, the migration target from September 17 to September 22, and a sentence saying migrated GPT links were planned to redirect was removed. Two other OpenAI help articles still give the September 17 target. On personal Free, Go, Plus and Pro accounts, new GPTs already cannot be created or published.
Also filed underopenaichatgptcustom-gptsmigrationpluginsdated-terms
Five dates on our deadline board had passed with nothing written under them. Here is what each one turned out to be.
A deadline board that lets a date pass in silence is a countdown that stops and tells you nothing. Five rows on this desk's board — o3 leaving ChatGPT, the DALL·E GPT, GPT-5.4 in Codex, Sonnet 5's introductory price and Cowork's doubled limits — had passed between August 19 and August 31 with no outcome filed on the board itself, though the desk's verification calendar had checked most of them. Re-read on September 14: one price change was cancelled, one retirement page still describes its August date as upcoming two weeks later, two retirements cannot be confirmed from any page this desk can read, and a Cowork terms article that vanished in August is still gone — with no reachable page stating what Cowork's limits now are.
Also filed underaiopenaianthropicdeadlinespricingcoworkcodexverificationcorrections
Three model retirements land between September 30 and October 2. The one most likely to catch you is not on the maker's page.
Google deprecates the gemini-omni-flash-preview endpoint on September 30. OpenAI removes gpt-5.4-cyber from its API on October 1. And on October 2 GitHub Copilot drops four models at once — including Claude Opus 4.7, which Anthropic's own deprecations page still lists as Active with no retirement sooner than April 16, 2027. Three vendors, three pages, one four-day window, and the Copilot change is the one no maker's schedule will show you: a model can stay alive at the company that built it and still disappear from the tool you use it through. Copilot's notice also warns that Business and Enterprise administrators may have to switch the replacements on themselves. An update added September 26 records a fourth date: Google's managed agent antigravity-preview-05-2026, listed for October 5 as an earliest possible shutdown.
Also filed underaideprecationsgithub-copilotopenaigoogleanthropicdated-termsmanaged-agents
August 10: two retirements landed. Only one of them is checkable.
Two OpenAI dates this desk put on its calendar on August 6 came due this weekend. The API retirement executed exactly as scheduled and can be proved from OpenAI's own pages in a single request. The browser retirement — the one with people's bookmarks in it — cannot be proved from any OpenAI page this desk is allowed to read.
Also filed underopenaideprecationsatlasverification-calendarevidence-posturedated-terms
August 4: the resets stopped, and August is filling up with end dates.
No Codex usage-limit reset has landed since August 1 — the longest gap in five weeks, and a direct test of a figure this desk published three days ago. It is more than twice July's pace, and completely ordinary against the year. Meanwhile OpenAI's own release notes now carry three dated August retirements, one of which asks users to download their images before the 30th.
Also filed underaiopenaicodexchatgptusage-limitsresetsdeprecationsprimary-sourceevidence-posturemeasurement
A record appears here because it carries retirements in its own tags. If a record you expected is missing, it was filed under a different subject — the full list is on the topics index.