Merge pull request #3588 from mrbullwinkle/mrb_03_17_2025_whats_new

[Azure OpenAI] [Release Branch] What's new

Author: prmerger-automator[bot]

articles/ai-services/openai/whats-new.md

@@ -21,6 +21,16 @@ This article provides a summary of the latest releases and major documentation u
 
 ## March 2025
 
+### Responses API & computer-use-preview model
+
+The [Responses API](./how-to/responses.md) is a new stateful API from Azure OpenAI. It brings together the best capabilities from the chat completions and assistants API in one unified experience. The Responses API also adds support for the new `computer-use-preview` model which powers the [Computer use](./how-to/computer-use.md) capability.
+
+**For access to `computer-use-preview` registration is required, and access will be granted based on Microsoft's eligibility criteria**. Customers who have access to other limited access models will still need to request access for this model.
+
+Request access: [`computer-use-preview` limited access model application](https://aka.ms/oai/cuaaccess)
+
+For more information on model capabilities, and region availability see the [models documentation](./concepts/models.md#computer-use-preview).
+
 ### Provisioned spillover (preview)
 
 Spillover manages traffic fluctuations on provisioned deployments by routing overages to a designated standard deployment. To learn more about how to maximize utilization for your provisioned deployments with spillover, see [Manage traffic with spillover for provisioned deployments (preview)](./how-to/spillover-traffic-management.md).