Microsoft is adding VECTOR type support to Azure:

https://learn.microsoft.com/en-us/sql/t-sql/data-types/vector-data-type?view=azuresqldb-current&tabs=csharp-sample

Use example: https://www.sqlservercentral.com/articles/implementing-vector-datatype-with-azure-sql-server?utm_source=sqlservercentral&utm_medium=email&utm_campaign=newsletter-1818&utm_term=advocates&utm_content=advocates