Merge branch 'DDOC-1454-Add-GPT-5-1' of github.com:box/developer.box.com into staging

Author: anastasiaberyoza

.spelling

@@ -369,3 +369,4 @@ add-ons
 cybersecurity
 SObject
 WatsonX
+400k

content/guides/box-ai/ai-models/index.md

@@ -59,6 +59,14 @@ Models offered in **Beta** mode have not been fully performance-tested at scale
 Box AI is powered by the following AI models. These models are integrated with Box AI to facilitate various use cases while adhering to enterprise grade standards. Below, you’ll find information about each model, including its capabilities, intended applications, and applicable usage guidelines.
 
 <TileGrid rows="2">
+    <Tile type="gpt" title="openai__gpt_5_1" href="/guides/box-ai/ai-models/openai-gpt-5-1-model-card">
+			A multimodal model with enterprise-grade performance and adaptive reasoning.
+   		<div>
+   			<strong style="background-color: #e8e8e8">Chat</strong>
+				<strong style="background-color: #e1ffe7">Available</strong>
+				<strong style="background-color: #f8d59b">Premium</strong>
+			</div>
+		</Tile> 
     <Tile type="gpt" title="openai__gpt_5" href="/guides/box-ai/ai-models/openai-gpt-5-model-card">
 			A multimodal model with advanced reasoning and long-context understanding.
    		<div>
@@ -69,7 +77,7 @@ Box AI is powered by the following AI models. These models are integrated with B
 				<strong style="background-color: #e1ffe7">Available</strong>
 				<strong style="background-color: #f8d59b">Premium</strong>
 			</div>
-		</Tile>
+		</Tile>   
 		<Tile type="gpt" title="azure__openai__gpt_4_1_mini" href="/guides/box-ai/ai-models/azure-openai-gpt-4-1-mini-model-card">
 			A multimodal model designed to handle lightweight tasks.
 			<div>

content/guides/box-ai/ai-models/openai-gpt-5-1-model-card.md

@@ -0,0 +1,35 @@
+---
+rank: 2
+related_guides:
+  - box-ai/ai-tutorials/ask-questions
+  - box-ai/ai-tutorials/generate-text
+  - box-ai/ai-tutorials/extract-metadata
+  - box-ai/ai-tutorials/extract-metadata-structured
+  - box-ai/ai-agents/get-agent-default-config
+---
+# OpenAI GPT-5.1
+
+**OpenAI GPT-5.1** is a multimodal model designed for coding and agentic tasks with configurable reasoning effort.
+
+## Model details
+
+| Item  | Value | Description |
+| ----- | ----- | ----------- |
+| Model name | **GPT-5.1** | The name of the model. | 
+| Model category | **Premium** | The category of the model: Standard or Premium. |
+| API model name |`openai__gpt_5_1`| The name of the model that is used in the [Box AI API for model overrides][overrides]. The user must provide this exact name for the API to work. |
+| Hosting layer | **OpenAI** | The trusted organization that securely hosts LLM. |
+| Model provider | **OpenAI** | The organization that provides this model. |
+| Release date | **November 13th, 2025** | The release date for the model. |
+| Knowledge cutoff date | **September 30th, 2024** | The date after which the model does not get any information updates. |
+| Input context window | **400k tokens** | The number of tokens supported by the input context window. | 
+| Maximum output tokens | **128k tokens** | The number of tokens that can be generated by the model in a single request.| 
+| Empirical throughput| **Not specified** | The number of tokens the model can generate per second. |
+| Open source | **No** | Specifies if the model's code is available for public use.|
+
+## Additional documentation
+
+For additional information, see [official OpenAI GPT-5 documentation][openai-gpt-5-model].
+
+[openai-gpt-5-model]: https://platform.openai.com/docs/models/gpt-5.1
+[overrides]: g://box-ai/ai-agents/ai-agent-overrides