Merge pull request #6451 from MicrosoftDocs/repo_sync_working_branch

Confirm merge from repo_sync_working_branch to main to sync with https://github.com/MicrosoftDocs/azure-ai-docs (branch main)

Author: Taojunshen

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

@@ -16,6 +16,16 @@ recommendations: false
 
 Azure OpenAI models are continually refreshed with newer and more capable models. As part of this process, we deprecate and retire older models. This article provides information about models that are currently available, deprecated, and retired.
 
+## Model availability
+
+For the availability of models, see the following information:
+
+- Generally Available (GA) model versions will be available for a minimum of 12 months.
+- After 12 months, existing customers may continue to use older model versions for an additional six months.
+- New customers who have never deployed the older model version will no longer have access after 12 months.
+- For global deployments, all future model versions starting with `gpt-4o` and `gpt-4 0409` will be available with their (`N`) next succeeding model (`N+1`) for comparison together.
+- Customers have 60 days to try out a new GA model in at least one global or standard region before any upgrades happen to a newer GA model.
+
 ### Terminology
 
 - **Deprecation**: When a model is deprecated, it's no longer available for new customers. It continues to be available for use by customers who have existing deployments until the model is retired.
@@ -49,14 +59,6 @@ Event types include:
 
 If you want to receive SMS text-based alerts versus just emails, select **Create action group**. Then, under **Notification type**, select **Email/SMS message/Push/Voice** and configure your phone number.
 
-## Model availability
-
-For the availability of models, see the following information:
-
-- There is at least one year of model availability for GA models after the release date of a model in at least one region worldwide
-- For global deployments, all future model versions starting with `gpt-4o` and `gpt-4 0409` will be available with their (`N`) next succeeding model (`N+1`) for comparison together.
-- Customers have 60 days to try out a new GA model in at least one global or standard region before any upgrades happen to a newer GA model.  
-
 ### Considerations for Azure public cloud
 
 Be aware of the following information: