LLM integration with Vercel AI SDK (opens in new tab)

Large language models (LLMs) understand and generate text from prompts. The Vercel AI SDK is a provider-agnostic layer over LLM APIs - core functions are generateText, streamText, and embed. This post uses the OpenAI provider and mirrors the patterns from the OpenAI Responses API post. For the lower-level openai npm package, see the Chat Completions API and Responses API posts. Prerequisites OpenAI account Generated API key Enabled billing Node.js version 26 ai, @ai-sdk/openai, and zod instal...