Build Deep Research AI Agent with Next.js, Vercel AI SDk and LLMs like Gemini, Deepseek & Gpt-4o

April 26, 2026 · View on GitHub

A powerful Deep Research AI agent like Gemini or ChatGPT. Using Next.js, Vercel AI SDK, and Exa Search API, An intelligent system that generates follow-up questions, crafts optimal search queries, and compiles comprehensive research reports.

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If you want to learn how to create it please follow below tutorial👇:
➡ Tutorial Link 💚: Deep research ai agent

If you are looking for old tutorial version please checkout this branch:
Tutorial Version (Old)

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🎯 For customised solutions or deployment please contact: https://tally.so/r/wdlj0N

⭐DO NOT FORGET TO STAR THIS REPO⭐

deep research Ai Agent

🚀 Key Features

  • 🔧 Fully Customizable Research Flow
  • 🔍 Adaptive Search Queries
  • ⚙️ Seamless LLM Integration
  • 💼 Modular Components
  • 🌐 Next.js & Vercel AI SDK
  • ♻️ Iterative Research Loop

🛠️ Tech Stack

  • Framework: Next.js 16 (App Router, Turbopack)
  • Styling: Tailwind CSS v4, Shadcn UI
  • AI Integration: Vercel AI SDK v6
  • LLMs: GPT-4o, Gemini, Deepseek via OpenRouter
  • Web Search: Exa Search API
  • UI Components: Shadcn
  • Language: TypeScript
  • Package Manager: Bun

🔄 What's New (Dependency Refresh)

This branch has been migrated from the original tutorial stack to the latest versions. The runtime behaviour is the same — only the toolchain moved forward.

  • Next.js 15 → 16 (Turbopack production builds, next lint removed)
  • Vercel AI SDK 4 → 6 (generateObject replaced with generateText + Output.object(), useChat now uses DefaultChatTransport)
  • @ai-sdk/react 1 → 3, @openrouter/ai-sdk-provider 0.4 → 2
  • Zod 3 → 4, lucide-react 0.x → 1, react-syntax-highlighter 15 → 16
  • ESLint config migrated to the native flat config from eslint-config-next v16
  • Package manager: switched from npm to Bun (bun.lock replaces package-lock.json)

Want the original tutorial code? Check out commit 274eff7 (the last version before the refresh) or browse any earlier commit on this branch.

⚡ Prerequisites

Before you begin, ensure you have:

  • OpenRouter API key (or you can use grok or any other LLM providers)
  • Exa search API key

🚀 Setup Instructions

1. Clone the Repository

git clone [repo-url]
cd Deep-Research-AI-Agent

2. Install Dependencies

This project uses Bun as the package manager.

bun install

3. Environment Variables

Create a .env.local file in the root directory. Check .env.example for required variables.

4. Start Development Server

bun run dev

Visit http://localhost:3000 to see your app.

🌟 Show Your Support

Give a ⭐️ if this project helped you!

If you have any question or want a custom build for your business, you can reach out to me via:

MyChannel: https://www.youtube.com/codebucks My Website: https://devdreaming.com/