refined intro

Author: HeidiSteen

articles/search/cognitive-search-attach-cognitive-services.md

@@ -14,7 +14,7 @@ ms.date: 01/09/2025
 
 # Attach an Azure AI multi-service resource to a skillset in Azure AI Search
 
-When configuring an optional [AI enrichment pipeline](cognitive-search-concept-intro.md) in Azure AI Search, you can enrich a small number of documents free of charge, limited to 20 transactions daily per index. For larger and more frequent workloads, you should attach a billable [Azure AI multi-service resource](/azure/ai-services/multi-service-resource?pivots=azportal). 
+Built-in skills are backed by Azure AI multi-service resources hosted internally by Azure AI Search in most supported regions. When configuring a skillset for optional [AI enrichment](cognitive-search-concept-intro.md) in Azure AI Search, you can enrich a small number of documents free of charge, limited to 20 transactions daily per index. For larger and more frequent workloads, you should attach a billable [Azure AI multi-service account](/azure/ai-services/multi-service-resource?pivots=azportal). 
 
 A multi-service account provides a collection of Azure AI services, rather than individual services. Providing an account in an Azure AI Search [skillset](/rest/api/searchservice/skillsets/create) allows Microsoft to charge you for using these services:
 
@@ -23,7 +23,7 @@ A multi-service account provides a collection of Azure AI services, rather than
 + [Azure AI Speech](/azure/ai-services/speech-service/overview) for speech to text and text to speech
 + [Azure AI Translator](/azure/ai-services/translator/translator-overview) for machine text translation
 
-Exceptions to billing through the multi-service account include [AzureOpenAIEmbedding](cognitive-search-skill-azure-openai-embedding.md) or the [AML skill](cognitive-search-aml-skill) billing. Usage for those specific skills are through [Azure OpenAI pay-as-you-go pricing](https://azure.microsoft.com/pricing/details/cognitive-services/openai-service/#pricing) and [Azure Machine Learning pay-as-you-go pricing](https://azure.microsoft.com/pricing/details/machine-learning/), respectively. A few other skills, such as Text Split and Text Merge, aren't billable.
+Exceptions to billing through the multi-service account include [AzureOpenAIEmbedding](cognitive-search-skill-azure-openai-embedding.md) or the [AML skill](cognitive-search-aml-skill) billing. Azure AI Search doesn't provide internal hosting of embedding models or chat models. Usage for those specific skills are through [Azure OpenAI pay-as-you-go pricing](https://azure.microsoft.com/pricing/details/cognitive-services/openai-service/#pricing) and [Azure Machine Learning pay-as-you-go pricing](https://azure.microsoft.com/pricing/details/machine-learning/), respectively. A few other skills, such as Text Split and Text Merge, aren't billable.
 
 To attach an Azure AI multi-resource, you must provide connection information in the skillset. Azure AI Search doesn't use the connection for skillset execution, but it does use the connection to access the billing meters on the resource. As such, your Azure AI services account is used for billing, not skills processing. Azure AI Search uses separate dedicated resources for skills processing.