Merge pull request #4140 from mrbullwinkle/mrb_04_15_2025_nano

[Azure OpenAI] GPT 4.1 nano

Author: prmerger-automator[bot]

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

@@ -38,12 +38,15 @@ Azure OpenAI Service is powered by a diverse set of models with different capabi
 | Model | Region |
 |---|---|
 | `gpt-4.1` (2025-04-14) | East US2 (Global Standard), Sweden Central (Global Standard) |
+| `gpt-4.1-nano` (2025-04-14) | East US2 (Global Standard), Sweden Central (Global Standard)|
 
 ### Capabilities
 
 |  Model ID  | Description | Context Window | Max Output Tokens | Training Data (up to)  |
 |  --- |  :--- |:--- |:---|:---: |
 | `gpt-4.1` (2025-04-14) <br> <br> **Latest model from Azure OpenAI**  | - Text & image input <br> - Text output <br> - Chat completions API <br>- Responses API <br> - Streaming <br> - Function calling <br> Structured outputs (chat completions)   | 1,047,576 | 32,768 | May 31, 2024 |
+| `gpt-4.1-nano` (2025-04-14) <br><br> **Fastest 4.1 model** | - Text & image input <br> - Text output <br> - Chat completions API <br>- Responses API <br> - Streaming <br> - Function calling <br> Structured outputs (chat completions)   | 1,047,576  | 32,768 | May 31, 2024 |
+
 
 ## computer-use-preview
 

articles/ai-services/openai/how-to/function-calling.md

@@ -41,6 +41,7 @@ At a high level you can break down working with functions into three steps:
 * `gpt-4o-mini` (`2024-07-18`)
 * `gpt-4.5-preview` (`2025-02-27`)
 * `gpt-4.1` (`2025-14-2025`)
+* `gpt-4.1-nano` (`2025-14-2025`)
 
 Support for parallel function was first added in API version [`2023-12-01-preview`](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-12-01-preview/inference.json)
 

articles/ai-services/openai/how-to/prompt-caching.md

@@ -32,6 +32,7 @@ Currently only the following models support prompt caching with Azure OpenAI:
 - `gpt-4o-realtime-preview` (version 2024-12-17)
 - `gpt-4o-mini-realtime-preview` (version 2024-12-17)
 - `gpt-4.1-2025-04-14`
+- `gpt-4.1-nano-2025-04-14`
 
 > [!NOTE]
 > Prompt caching is now also available as part of model fine-tuning for `gpt-4o` and `gpt-4o-mini`. Refer to the fine-tuning section of the [pricing page](https://azure.microsoft.com/pricing/details/cognitive-services/openai-service/) for details.

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

@@ -44,6 +44,7 @@ The responses API is currently available in the following regions:
 - `gpt-4o-mini` (Version: `2024-07-18`)
 - `computer-use-preview`
 - `gpt-4.1` (Version: `2025-04-14`)
+- `gpt-4.1-nano` (Version: `2025-04-14`)
 
 Not every model is available in the regions supported by the responses API. Check the [models page](../concepts/models.md) for model region availability.
 

articles/ai-services/openai/how-to/structured-outputs.md

@@ -32,6 +32,7 @@ Structured outputs make a model follow a [JSON Schema](https://json-schema.org/o
 - `gpt-4o` version: `2024-08-06`
 - `gpt-4o` version: `2024-11-20`
 - `gpt-4.1` version `2025-04-14`
+- `gpt-4.1-nano` version (`2025-14-2025`)
 
 ## API support
 

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

@@ -23,7 +23,7 @@ This article provides a summary of the latest releases and major documentation u
 
 ### GPT-4.1 released
 
-The latest model from Azure OpenAI with a 1 million token context limit. For more information, see the [models page](./concepts/models.md#gpt-41-series).
+GPT 4.1 and GPT 4.1-nano are now available. These are the latest models from Azure OpenAI. GPT 4.1 has a 1 million token context limit. For more information, see the [models page](./concepts/models.md#gpt-41-series).
 
 ## March 2025