Hi everyone! I’m planning to build a full-featured AI chatbot application using Next.js, the Vercel AI SDK, and maybe LangChain or custom model integration. I’d love to hear from folks who’ve done this before.

Questions

• What architecture works best for chatbots on Vercel (Serverless Functions vs Edge)?
• Performance-optimization tips for streaming responses?
• How do you handle conversation history and persistence?
• Suggestions for reducing API costs?

Thanks in advance!