Model Deprecations & Discontinuations & Redirections
Due to adjustments by model providers, the following models will be discontinued
Information
Automatic redirection operations are performed by Google Gemini, and NekroAgent Official Relay will not actively delete corresponding models to protect user service stability
After discontinuation, experimental models will be redirected to stable versions
Older models will be redirected to newer models
Note: After model discontinuation, we may switch the billing of discontinued models to the billing of corresponding new version models without notifying you
Please be sure to pay attention to this page in a timely manner
Model Discontinuation Warning
Updated on April 18, 2026
According to the Google Gemini API Deprecation Notice and Version Notes, the following models have announced discontinuation plans. The dates listed in the table are the earliest possible dates for the models to be retired.
Upcoming Discontinued Models (2026)
- Gemini 2.5 Series:
gemini-2.5-pro: June 17, 2026 Discontinued (Recommend:gemini-3.1-pro-preview)gemini-2.5-flash: June 17, 2026 Discontinued (Recommend:gemini-3-flash-preview)gemini-2.5-flash-lite: July 22, 2026 Discontinued (Recommend:gemini-3.1-flash-lite-preview)gemini-2.5-flash-image: October 2, 2026 Discontinued (Recommend:gemini-3.1-flash-image-preview)
- Gemini 2.0 Series:
gemini-2.0-flash / -001: June 1, 2026 Discontinued (Recommend:gemini-2.5-flash)gemini-2.0-flash-lite / -001: June 1, 2026 Discontinued (Recommend:gemini-2.5-flash-lite)
- Other Models:
gemini-embedding-001: July 14, 2026 Discontinuedimagen-4.0-generate-001 / ultra / fast: June 24, 2026 Discontinuedgemini-robotics-er-1.5-preview: April 30, 2026 Discontinued (Recommend:gemini-robotics-er-1.6-preview)
Discontinued Models
The following models have been closed, and requests will not be available or will be automatically redirected:
| Model Name | Discontinuation Date | Recommended Alternative |
|---|---|---|
gemini-3-pro-preview | March 9, 2026 | gemini-3.1-pro-preview |
gemini-2.5-flash-lite-preview-09-2025 | March 31, 2026 | gemini-3.1-flash-lite-preview |
gemini-2.5-flash-preview-09-25 | February 17, 2026 | gemini-3-flash-preview |
imagen-4.0-generate-preview-06-06 | February 17, 2026 | imagen-4.0-generate-001 |
gemini-2.5-flash-image-preview | January 15, 2026 | gemini-2.5-flash-image |
text-embedding-004 | January 14, 2026 | gemini-embedding-001 |
gemini-2.5-pro-preview (03-25/05-06/06-05) | December 2, 2025 | gemini-3.1-pro-preview |
gemini-2.0-flash-lite-preview (-02-05) | December 9, 2025 | gemini-2.5-flash-lite |
gemini-2.0-flash-live-001 | December 9, 2025 | gemini-3.1-flash-live-preview |
gemini-live-2.5-flash-preview | December 9, 2025 | gemini-3.1-flash-live-preview |
gemini-2.5-flash-preview-05-20 | November 18, 2025 | gemini-3-flash-preview |
gemini-2.0-flash-preview-image-generation | November 14, 2025 | gemini-2.5-flash-image |
veo-3.0-generate / fast-preview | November 12, 2025 | veo-3.1-generate-preview |
imagen-3.0-generate-002 | November 10, 2025 | imagen-4.0-generate-001 |
embedding-001 / gecko-001 / exp | October 30, 2025 | gemini-embedding-001 |
Automatic redirection operations are performed by Google Gemini, and NekroAgent Official Relay will not actively delete corresponding models to protect user service stability
Experimental Model Description
Models marked as exp (experimental) or preview (preview) in the documentation are experimental models. These models:
- May be updated or closed at any time, with a short lifecycle
- It is recommended to regularly follow Google Gemini API Version Notes for the latest updates
- For production environments, it is recommended to prioritize stable version (GA) models, or prepare backup solutions
- Experimental models will usually be gradually closed after the stable version is released
- Some preview models will automatically redirect to stable versions, it is recommended to directly use stable version model names