Introducing the Vercel AI SDK: npm i ai

Introduces the Vercel AI SDK, an open-source library for building streaming AI applications with React/Next.js, Svelte/SvelteKit, and soon Nuxt/Vue. It includes built-in LLM adapters for OpenAI, LangChain, and Hugging Face, and streaming-first UI helpers like `useChat` and `useCompletion`. The SDK also provides stream helpers for database callbacks and is designed to work with Vercel Functions and Fluid compute. The Chat & Prompt Playground now features a chat interface and AI SDK code generation.