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 December 10, 2025

According to the Google Gemini API Deprecation Notice and Version Notes, the following models will be discontinued at the specified time. Please migrate in a timely manner:

• gemini-2.0-flash: Expected to be discontinued as early as February 2026, recommend switching to gemini-2.5-flash
• gemini-2.5-pro: Expected to be discontinued as early as June 2026, recommend switching to gemini-3-pro
• gemini-2.5-flash: Expected to be discontinued as early as June 2026
• gemini-2.5-flash-thinking: Expected to be discontinued as early as June 2026
• gemini-2.5-flash-image-preview: Will be closed on January 15, 2026

Discontinued Models

The following models have been closed, and requests will not be available or will be automatically redirected:

Closed (June 26, 2025):

• gemini-2.5-pro-exp-03-25 - Closed, please use gemini-2.5-pro

Closed (September 29, 2025):

• gemini-1.5-pro - Closed
• gemini-1.5-flash - Closed
• gemini-1.5-flash-8b - Closed

Closed (November 10, 2025):

• imagen-3.0-generate-002 - Closed, please switch to Imagen 4

Closed (Announced November 4, 2025):

• gemini-2.5-flash-lite-preview-06-17 - Closed November 18, 2025
• gemini-2.5-flash-preview-05-20 - Closed November 18, 2025
• gemini-2.0-flash-thinking-exp - Closed December 2, 2025
• gemini-2.0-flash-thinking-exp-01-21 - Closed December 2, 2025
• gemini-2.0-flash-thinking-exp-1219 - Closed December 2, 2025
• gemini-2.5-pro-preview-03-25 - Closed December 2, 2025
• gemini-2.5-pro-preview-05-06 - Closed December 2, 2025
• gemini-2.5-pro-preview-06-05 - Closed December 2, 2025
• gemini-2.0-flash-lite-preview - Closed December 9, 2025
• gemini-2.0-flash-lite-preview-02-05 - Closed December 9, 2025

Automatic Redirection (June 26, 2025):

• gemini-2.5-pro-preview-05-06 → Automatically redirects to gemini-2.5-pro
• gemini-2.5-pro-preview-03-25 → Automatically redirects to gemini-2.5-pro

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