update

Author: mrbullwinkle

articles/ai-services/openai/how-to/reasoning.md

@@ -28,7 +28,7 @@ Azure OpenAI `o-series` models are designed to tackle reasoning and problem-solv
 
 | Model | Region | Limited access |
 |---|---|---|
-| `o3-pro`  | East US2 & Sweden Central (Global Standard)    |    |
+| `o3-pro`  | East US2 & Sweden Central (Global Standard)    |  Request access: [o3 limited access model application](https://aka.ms/oai/o3access). If you already have `o3 access` no request is required for `o3-pro`.    |
 | `codex-mini-latest`  | East US2 & Sweden Central (Global Standard)    | No access request needed.    |
 | `o4-mini`  | [Model availability](../concepts/models.md#global-standard-model-availability)   | No access request needed to use the core capabilities of this model.<br><br> Request access: [o4-mini reasoning summary feature](https://aka.ms/oai/o3access)     |
 | `o3` |  [Model availability](../concepts/models.md#global-standard-model-availability)  | Request access: [o3 limited access model application](https://aka.ms/oai/o3access)     |