Add Gemini 3 Pro model card (#868)

* Add Gemini 3 Pro model card

* Minor fix

* Add Beta pill

* Delete compliance info for Gemini 3 Pro

Author: anastasiaberyoza

content/guides/box-ai/ai-models/google-gemini-3-pro-model-card.md

@@ -0,0 +1,36 @@
+---
+rank: 13
+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
+---
+
+# Google Gemini 3 Pro
+
+**Google Gemini 3 Pro** is a natively multimodal model for complex tasks, which can comprehend vast datasets and solve challenging problems by processing different information sources, including text, audio, images, video, and entire code repositories.
+
+## Model details
+
+| Item  | Value | Description |
+|-----------|----------|----------|
+| Model name | **Google Gemini 3 Pro** | The name of the model. | 
+| Model category | **Premium** | The category of the model: Standard or Premium. |
+| API model name | `google__gemini_3_pro` | 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 | **Google** | The trusted organization that securely hosts LLM. |
+| Model provider| **Google** | The organization that provides this model. |
+| Release date | **November 18th, 2025** | The release date for the model.|
+| Knowledge cutoff date | **January 2025** | The date after which the model does not get any information updates. |
+| Input context window | **1m tokens** | The number of tokens supported by the input context window.| 
+| Maximum output tokens | **65k 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 Google Gemini 3 Pro documentation][vertex-ai-gemini-3-pro].
+
+[vertex-ai-gemini-3-pro]: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/3-pro
+[overrides]: g://box-ai/ai-agents/ai-agent-overrides

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

@@ -139,6 +139,14 @@ Box AI is powered by the following AI models. These models are integrated with B
         <strong style="background-color: #e1f8ff">ISMAP</strong>        
 			</div>
 		</Tile>
+    <Tile type="gemini" title="google__gemini_3_pro" href="/guides/box-ai/ai-models/google-gemini-3-pro-model-card">
+		A natively multimodal model for complex tasks with a 1 million token context window.
+    <div>
+				<strong style="background-color: #e8e8e8">Chat</strong>
+				<strong style="background-color: #f0e2ff">Beta</strong>
+				<strong style="background-color: #f8d59b">Premium</strong>       
+			</div>
+		</Tile>
 		<Tile type="gemini" title="google__gemini_2_5_pro" href="/guides/box-ai/ai-models/google-gemini-2-5-pro-model-card">
 		Gemini multimodal model with a 1 million token context window and advanced reasoning capabilities.
 			<div>