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Which AI Models Were Deprecated in 2026?
Published: November 7, 2026 · Reviewed November 2026 · 9 min read
By the Ingenious AI team
The short answer
ModelMinder's catalog records 22 models deprecated or retired in 2026 — all OpenAI's. Sixteen are marked deprecated with 2026 shutdown dates: 11 shut down on October 23, 2026 and 5 more follow on December 11, 2026. Six were retired in September–October 2026. Every entry below is a catalog row with its status, date, and named replacement — nothing unrecorded is listed. Source: ModelMinder catalog, seeded from OpenAI's deprecations page; catalog last reviewed 2026-10-08; page reviewed November 2026.
Which models were retired in 2026?
Retired means the date has passed and requests fail. Six catalog rows carry that status, each with its retirement date as recorded from OpenAI's deprecations page:
| Model | Retired | Catalog replacement |
|---|---|---|
| sora-2 | 2026-09-24 | None offered (Videos API shut down) |
| sora-2-pro | 2026-09-24 | None offered |
| gpt-3.5-turbo-instruct | 2026-09-28 | gpt-5.6-terra |
| babbage-002 | 2026-09-28 | gpt-5.6-terra |
| davinci-002 | 2026-09-28 | gpt-5.6-terra |
| gpt-5.4-cyber | 2026-10-01 | gpt-5.6-cyber |
Which models shut down on October 23, 2026?
The year's biggest single wave: 11 models, announced April 22, 2026 — six months of notice — and covered in depth in our October 2026 shutdown guide:
| Model | Kind | Catalog replacement |
|---|---|---|
| gpt-3.5-turbo-0125 | Chat | gpt-5.6-terra |
| gpt-4-0613 | Chat | gpt-5.6-sol |
| gpt-4-1106-preview | Chat | gpt-5.6-sol |
| gpt-4-turbo | Chat | gpt-5.6-sol |
| gpt-4.1-nano | Chat | gpt-5.6-luna |
| gpt-4o-2024-05-13 | Chat | gpt-4o (the alias itself was not deprecated) |
| gpt-image-1 | Image | gpt-image-2 |
| o1-2024-12-17 | Reasoning | gpt-5.6-sol |
| o1-pro-2025-03-19 | Reasoning | gpt-5.6-sol |
| o3-mini-2025-01-31 | Reasoning | gpt-5.6-terra |
| o4-mini-2025-04-16 | Reasoning | gpt-5.6-terra |
Which models are deprecated with a shutdown still ahead?
Five catalog rows are deprecated with a shutdown date of December 11, 2026 — the live deadline as this page is reviewed in November 2026:
| Model | Kind | Shutdown | Catalog replacement |
|---|---|---|---|
| gpt-5-2025-08-07 | Chat | 2026-12-11 | gpt-5.6-sol |
| gpt-5-mini-2025-08-07 | Chat | 2026-12-11 | gpt-5.6-terra |
| gpt-5-nano-2025-08-07 | Chat | 2026-12-11 | gpt-5.6-luna |
| o3-2025-04-16 | Reasoning | 2026-12-11 | gpt-5.6-sol |
| o3-pro-2025-06-10 | Reasoning | 2026-12-11 | gpt-5.6-sol |
If any of those five IDs is in your stack, the sunset playbook is now a December deadline, not a reading exercise — and a model can also change without retiring at all, which is the silent-update problem.
What is not on this list — and why?
Honesty about scope is the point of a log. The catalog holds 51 models across OpenAI, Anthropic, Google, Meta, Mistral, xAI, DeepSeek, and video providers; 25 are recorded active and 4 as legacy. No Anthropic, Google, or other-provider row in the catalog carries a 2026 deprecation or retirement date, so none appears above — the legacy rows (claude-3-5-sonnet-20241022, gemini-2.0-flash, llama-3.3-70b-instruct, grok-3) are watch signals whose catalog notes say to check the vendor's deprecation page for current status; this log does not upgrade a signal into a date. When a vendor announces and the catalog records it, the row joins this page at its next review. The standing, dated view across all providers is the retirement calendar; the fleet behind it is at Ingenious AI.
Frequently asked questions
How many AI models were deprecated or retired in 2026?
ModelMinder's catalog records 22: all OpenAI — 16 marked deprecated with shutdown dates in 2026 (11 on October 23, 5 on December 11) and 6 marked retired during 2026 (September 24, September 28, and October 1). The log covers what the catalog records; other providers' catalog rows carry no 2026 deprecation dates.
Which models shut down on October 23, 2026?
Eleven OpenAI models: gpt-3.5-turbo-0125, gpt-4-0613, gpt-4-1106-preview, gpt-4-turbo, gpt-4.1-nano, gpt-4o-2024-05-13, gpt-image-1, o1-2024-12-17, o1-pro-2025-03-19, o3-mini-2025-01-31, and o4-mini-2025-04-16 — announced April 22, 2026 on OpenAI's deprecations page.
Where does this log's data come from?
Every row is a row in ModelMinder's own model catalog, seeded from OpenAI's official deprecations page as reported 2026-10-07/08, with the catalog's last-reviewed date of 2026-10-08 and a link to the vendor changelog on each row. Nothing is listed here that the catalog does not record.
Are any Anthropic or Google models on the 2026 list?
Not in this log. ModelMinder's catalog rows for Anthropic and Google are recorded as active or legacy with no 2026 shutdown dates, so they do not appear. A legacy row — claude-3-5-sonnet-20241022, gemini-2.0-flash — is a watch signal, not a deprecation, and this page does not present it as one.
How does this page stay current?
It is a living page generated from the same catalog the retirement calendar and risk scores use. When a vendor announces a new deprecation and the catalog records it — status, shutdown date, replacement, source — the model joins this log at its next review. The review stamp at the top advances with each pass.