Update model hosting and data commitment details

Clarified data commitment regarding model training and updated content filter information for Azure Only Policy Private Preview

Author: iamcjwilliams

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

@@ -30,9 +30,11 @@ Used for:
 
 {% 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_gpt_51 %}, {% data variables.copilot.copilot_gpt_51_codex %}, {% data variables.copilot.copilot_gpt_51_codex_mini %}, {% data variables.copilot.copilot_gpt_5_codex %}, {% data variables.copilot.copilot_gpt_5 %}, and {% data variables.copilot.copilot_gpt_5_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.
+{% data variables.copilot.copilot_gpt_51 %}, {% data variables.copilot.copilot_gpt_51_codex %}, {% data variables.copilot.copilot_gpt_51_codex_mini %}, {% data variables.copilot.copilot_gpt_5_codex %}, {% data variables.copilot.copilot_gpt_5 %}, and {% data variables.copilot.copilot_gpt_5_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 models on customer business data_. 
 
-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.
+{% data variables.product.github %} maintains a [zero data retention agreement](https://platform.openai.com/docs/guides/your-data) with OpenAI.
+
+All 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.
 
 ## OpenAI models fine-tuned by Microsoft