I switched from using Vercel for my new web projects to Railway a while ago.
When the AI space heated up, vector databases became the new hotness. And a lot of the available choices are quite expensive or restricted. Pinecone is probably one of the better-known vector database providers and the favoured choice of many GPT users.
Finally, Railway now supports pgvector for PostgreSQL. You can use PostgreSQL as a vector database on Railway and ditch using multiple providers, as I was. I was using Supabase, which did the job nicely, but not having all my infrastructure in one dashboard was annoying.