Merge pull request #6528 from mrbullwinkle/mrb_08_12_2025_model_router

[Azure OpenAI] [Model Router] [Limited Access info update]

Author: prmerger-automator[bot]

articles/ai-foundry/openai/concepts/models.md

@@ -5,7 +5,7 @@ description: Learn about the model capabilities for models like GPT-5, GPT-5-min
 author: mrbullwinkle #ChrisHMSFT
 ms.author: mbullwin #chrhoder#
 manager: nitinme
-ms.date: 08/06/2025
+ms.date: 08/12/2025
 ms.service: azure-ai-openai
 ms.topic: conceptual
 ms.custom:
@@ -129,6 +129,9 @@ az cognitiveservices account deployment create \
 
 A model that intelligently selects from a set of underlying chat models to respond to a given prompt.
 
+> [!NOTE]
+> The latest version of model router is currently limited access only. You can request access using the `gpt-5 access` form: [gpt-5 limited access model application](https://aka.ms/oai/gpt5access). If you already have `o3 access` no request is required.
+
 ### Region availability
 
 | Model | Region |

articles/ai-foundry/openai/how-to/model-router.md

@@ -4,7 +4,7 @@ description: Learn how to use the model router in Azure OpenAI to select the bes
 author: PatrickFarley
 ms.author: pafarley
 manager: nitinme
-ms.date: 04/17/2025
+ms.date: 08/12/2025
 ms.service: azure-ai-openai
 ms.topic: how-to
 ms.custom:
@@ -20,6 +20,9 @@ You can access model router through the Completions API just as you would use a
 
 ## Deploy a model router model
 
+> [!NOTE]
+> The latest version of model router is currently limited access only. You can request access using the `gpt-5 access` form: [gpt-5 limited access model application](https://aka.ms/oai/gpt5access). If you already have `o3 access` no request is required.
+
 Model router is packaged as a single Azure AI Foundry model that you deploy. Follow the steps in the [resource deployment guide](/azure/ai-foundry/openai/how-to/create-resource). In the **Create new deployment** step, find `model-router` in the **Models** list. Select it, and then complete the rest of the deployment steps.
 
 > [!NOTE]