[Improvement]: GPT-4.1 missing from "How Copilot serves AI models" (#56756)

Author: sunbrye

content/copilot/reference/ai-models/model-hosting.md

@@ -18,10 +18,11 @@ contentType: reference
 
 Used for:
 
+* {% data variables.copilot.copilot_gpt_41 %}
 * {% data variables.copilot.copilot_o3 %}
 * {% data variables.copilot.copilot_o4_mini %}
 
-These models are hosted by OpenAI and {% data variables.product.github %}'s Azure tenant when used in {% data variables.product.prodname_copilot %}. OpenAI makes the [following data commitment](https://openai.com/enterprise-privacy/): _We [OpenAI] do not train our models on your business data by default_. {% data variables.product.github %} maintains a [zero data retention agreement](https://platform.openai.com/docs/guides/your-data) with OpenAI.
+{% data variables.copilot.copilot_gpt_41 %} is hosted by {% data variables.product.github %}'s Azure tenant when used in {% data variables.product.prodname_copilot %}. {% data variables.copilot.copilot_o3 %} and {% data variables.copilot.copilot_o4_mini %} models are hosted by OpenAI and {% data variables.product.github %}'s Azure tenant. OpenAI makes the [following data commitment](https://openai.com/enterprise-privacy/): _We [OpenAI] do not train our models on your business data by default_. {% data variables.product.github %} maintains a [zero data retention agreement](https://platform.openai.com/docs/guides/your-data) with OpenAI.
 
 When using OpenAI's models, input requests and output responses continue to run through {% data variables.product.prodname_copilot %}'s content filters for public code matching, when applied, along with those for harmful or offensive content.