Vercel AI SDK Masterclass: From Fundamentals to Deep Research
Apr 20, 2025 · 59:52
Nico Albanese from Vercel delivers a workshop on building agents with the AI SDK, demonstrating how to use generateText, tools, and structured outputs to create a deep research clone in Node.js. He shows that switching between models like GPT-4o mini, Perplexity Sonar Pro, and Gemini Flash 1.5 requires only changing one line of code. Tools with maxSteps enable autonomous multi-step agents, as when the model fetches weather data for San Francisco and New York and sums the temperatures across three steps. The deep research workflow generates subqueries (e.g., 'requirements to become a D1 shotput athlete'), searches via Exa with live crawl, evaluates relevance with an evaluate tool that discards irrelevant results, and recursively deepens research using depth and breadth parameters. Finally, o3 mini synthesizes the accumulated research into a structured Markdown report, all in 218 lines of code.
