How to Build a Real-Time AI Chatbot with Free Credit/n/n The Real Pain Point: Semantic Search Is Harder Than It Looks

Dev.to AI
Generative AI

How to Build a Real-Time AI Chatbot with Free Credit/n/n## The Real Pain Point: Semantic Search Is Harder Than It Looks Vector databases, embedding models, chunking strategies, reranking - building production-ready semantic search feels like assembling a spaceship. Most tutorials stop at "call the embedding API" and leave you stranded when you need to scale past 10,000 documents. The real challenge is not generating embeddings. It is making the search fast, accurate, and cost-predictable at scale.