Update model-retirements.md

Author: mrbullwinkle

articles/ai-services/openai/concepts/model-retirements.md

@@ -100,9 +100,9 @@ These models are currently available for use in Azure OpenAI Service.
 | `gpt-4`<br>`gpt-4-32k` | 0314 | June 6, 2025 | `gpt-4o` |
 | `gpt-4`<br>`gpt-4-32k` | 0613 | June 6, 2025 | `gpt-4o` |
 | `gpt-4` | turbo-2024-04-09 | No earlier than June 6, 2025 | `gpt-4o`|
-| `gpt-4` | 1106-preview | To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025 **<sup>1</sup>** <br>Retirement date: April 02, 2025  | `gpt-4o`|
-| `gpt-4` | 0125-preview |To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025 **<sup>1</sup>** <br>Retirement date: April 02, 2025  | `gpt-4o` |
-| `gpt-4` | vision-preview | To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025  **<sup>1</sup>** <br>Retirement date: April 02, 2025 | `gpt-4o`|
+| `gpt-4` | 1106-preview | To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025 **<sup>1</sup>** <br>Retirement date: May 1, 2025  | `gpt-4o`|
+| `gpt-4` | 0125-preview |To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025 **<sup>1</sup>** <br>Retirement date: May 1, 2025  | `gpt-4o` |
+| `gpt-4` | vision-preview | To be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025  **<sup>1</sup>** <br>Retirement date: May 1, 2025 | `gpt-4o`|
 | `gpt-4o` | 2024-05-13 | No earlier than June 30, 2025 <br><br>Deployments set to [**Auto-update to default**](/azure/ai-services/openai/how-to/working-with-models?tabs=powershell#auto-update-to-default) will be automatically upgraded to version: `2024-08-06`, starting on March 17, 2025. | |
 | `gpt-4o` | 2024-08-06 | No earlier than August 6, 2025  | |
 | `gpt-4o` | 2024-11-20 | No earlier than November 20, 2025  | |
@@ -171,6 +171,10 @@ If you're an existing customer looking for information about these models, see [
 
 ## Retirement and deprecation history
 
+## March 18, 2025
+
+GPT-4 preview models retirement date updated to date: May 1, 2025.
+
 ## February 28, 2025
 
 - Updated `gpt-4` versions `1106-preview`, `0125-preview`, `vision-preview` to be upgraded to **`gpt-4o` version: `2024-11-20`**, starting no sooner than March 10, 2025.