Adds section about project profile in vector search page.

Author: szabosteve

solutions/search/vector.md

@@ -46,3 +46,28 @@ The sparse vector approach uses the ELSER model to expand content with semantica
 - Large-scale deployments
 
 [Learn more about sparse vector search with ELSER](vector/sparse-vector.md).
+
+## Choosing your project's profile
+```{applies_to}
+serverless
+```
+
+When selecting a profile configuration for your project, it's recommended to consider your vector search use case.
+You can choose between two profiles: the General Purpose profile and the Vector Optimized profile.
+
+**The General Purpose (GP) profile is recommended for most search use cases, including:**
+
+- full text search
+- sparse vector-based semantic search (such as when using ELSER)
+- dense vectors compressed using BBQ (enabled by default)
+- sparse vectors
+
+**The Vector Optimized (VO) profile is recommended when your use case is based on:**
+
+- uncompressed dense vectors with high dimensionality
+
+::::{tip}
+
+Learn how billing works for your project in [Elasticsearch billing dimensions](../../deploy-manage/cloud-organization/billing/elasticsearch-billing-dimensions.md).
+
+::::