--- title: "Google Vertex AI gemini-3.6-flash retires on November 19, 2026: 2026-11-19 | Harbyn" description: "Google Vertex AI gemini-3.6-flash retires on November 19, 2026, effective Nov 19, 2026; replacement: gemini-3.8-flash." canonical: "https://harbyn.com/changes/vertex-ai/2026-10-09-gemini-3-6-flash-scheduled-for-retirement" last-updated: 2026-10-09 --- # Google Vertex AI gemini-3.6-flash retires on November 19, 2026 Markdown version of . Retirement - Google Vertex AI. high severity. Announced. Upcoming. The Vertex AI model lifecycle page lists gemini-3.6-flash, a shorter-term availability model, with a retirement date of November 19, 2026. Replacement: gemini-3.8-flash. 25 days left: the deadline is Nov 19, 2026. ## Facts | Fact | Value | | --- | --- | | Vendor | [Google Vertex AI](https://harbyn.com/vendors/vertex-ai.md) | | Kind | Retirement | | Severity | high | | Status | Announced | | Announced | Oct 9, 2026 (undated by the vendor; already published when we first read the page) | | Effective | Nov 19, 2026 | | Added to Harbyn | Oct 9, 2026 | | Lead time | 41 days of warning | | Symbols | `gemini-3.6-flash` | | Replacement | `gemini-3.8-flash` | | Review | Reviewed by a person, extracted by a model | ## Find it in your code ```sh npx harbyn scan ``` This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Google Vertex AI, from its packages and API hosts. 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 2026-10-09 06:16 UTC, sha256 `24d1fd4be0bf2b0cfc1d0f213ef42d4a0c7ffec639f92d0e075e028c5565ec2b`) ## Related changes ### More from Google Vertex AI - [text-embedding-004/005, text-multilingual-embedding-002 and multimodalembedding@001 retire on 2027-04-01](https://harbyn.com/changes/vertex-ai/2026-10-09-embedding-models-scheduled-for-retirement.md) (Retirement, effective Apr 1, 2027) - [gemini-2.5-flash-image retires on March 15, 2027](https://harbyn.com/changes/vertex-ai/2026-10-09-gemini-2-5-flash-image-scheduled-for-retirement.md) (Retirement, effective Mar 15, 2027) - [gemini-2.5-pro, gemini-2.5-flash and gemini-2.5-flash-lite retire on October 20, 2026](https://harbyn.com/changes/vertex-ai/2026-10-09-gemini-2-5-models-scheduled-for-retirement.md) (Retirement, effective Oct 20, 2026) - [gemini-3.7-flash retires on January 28, 2027](https://harbyn.com/changes/vertex-ai/2026-10-09-gemini-3-7-flash-scheduled-for-retirement.md) (Retirement, effective Jan 28, 2027) ### 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)