--- title: "OpenAI GPT-5 and o3 model deprecations - shutdown 2026-12-11 | Harbyn" description: "OpenAI GPT-5 and o3 model deprecations - shutdown 2026-12-11." canonical: "https://harbyn.com/changes/openai/2026-06-11-gpt-5-and-o3-model-deprecations-shutdown" last-updated: 2026-09-21 --- # OpenAI GPT-5 and o3 model deprecations - shutdown 2026-12-11 Markdown version of . Retirement - OpenAI. high severity. Announced. Upcoming. OpenAI deprecated gpt-5-2025-08-07, gpt-5-mini-2025-08-07, gpt-5-nano-2025-08-07, gpt-5-pro-2025-10-06, o3-2025-04-16, o3-pro-2025-06-10; removal from the API on 2026-12-11. Replacements differ per model; see the source for the per-model mapping. 47 days left: the deadline is Dec 11, 2026. ## Facts | Fact | Value | | --- | --- | | Vendor | [OpenAI](https://harbyn.com/vendors/openai.md) | | Product | models | | Kind | Retirement | | Severity | high | | Status | Announced | | Announced | Jun 11, 2026 | | Effective | Dec 11, 2026 | | Added to Harbyn | Sep 21, 2026 | | Lead time | 81 days of warning | | Model IDs | `gpt-5-2025-08-07`, `gpt-5-mini-2025-08-07`, `gpt-5-nano-2025-08-07`, `gpt-5-pro-2025-10-06`, `o3-2025-04-16`, `o3-pro-2025-06-10` | | Review | Automated, extracted by a deterministic parser | ## Find it in your code ```sh npx harbyn scan ``` The scanner reads your repository on your machine and reports every file and line that uses the identifiers above. Nothing leaves your machine. ## Sources Where this event comes from: the page we read, when we read it, and the hash of that snapshot. - (deprecations, fetched 2026-09-21 03:10 UTC, sha256 `eac49ffdf54a61294434a25dd11288b85c96cac4cc5054facb7893dec65fdae6`) ## Related changes ### More from OpenAI - [GPT Image model deprecations - shutdown 2026-12-01](https://harbyn.com/changes/openai/2026-06-02-gpt-image-model-deprecations-shutdown.md) (Retirement, effective Dec 1, 2026) - [gpt-5.2-chat-latest and gpt-5.3-chat-latest model snapshots - shutdown 2026-08-10](https://harbyn.com/changes/openai/2026-05-08-gpt-5-2-chat-latest-and-gpt-5-3-chat-latest-model-snapshots-shutdown.md) (Retirement, effective Aug 10, 2026) - [Legacy audio, realtime, and transcription models - shutdown 2027-01-20](https://harbyn.com/changes/openai/2026-07-20-legacy-audio-realtime-and-transcription-models-shutdown.md) (Retirement, effective Jan 20, 2027) - [Legacy GPT model snapshots (July 2026 shutdown) - shutdown 2026-07-23](https://harbyn.com/changes/openai/2026-04-22-legacy-gpt-model-snapshots-july-2026-shutdown-shutdown.md) (Retirement, effective Jul 23, 2026) ### Changes at other vendors - [OpenRouter: arcee-ai/trinity-large-thinking expire 2026-10-26](https://harbyn.com/changes/openrouter/2026-10-23-arcee-ai-trinity-large-thinking-expires-2026-10-26.md) (effective Oct 26, 2026) - [Google Cloud Run and Functions: Node.js 20 runtime decommission](https://harbyn.com/changes/google-cloud/2026-10-08-node-js-20-runtime-decommission.md) (effective Oct 30, 2026) - [Mistral AI: Z.ai GLM 5.2 (zai-glm-5-2) retires on Mistral on October 31, 2026](https://harbyn.com/changes/mistral/2026-09-29-z-ai-glm-5-2-deprecated-and-scheduled-for-retirement.md) (effective Oct 31, 2026) - [Fireworks AI: DeepSeek V4 Flash 0731 retires from Serverless Training November 2](https://harbyn.com/changes/fireworks/2026-10-18-upcoming-serverless-training-deprecation-deepseek-v4-flash-0731.md) (effective Nov 2, 2026) [All upcoming deadlines](https://harbyn.com/deadlines.md)