Ai Sdk Agent

Dimensions (Spectrums to Explore)

Derivation Logic

Plain English

Without AI SDK: You'd write different code for Claude, different code for GPT, handle streaming yourself, manage state yourself. Messy.

With AI SDK: One way to do it. Works with any AI. Handles streaming. Handles state.

Setup (Copy This)

# Core
pnpm add ai

# Pick your AI provider(s)
pnpm add @ai-sdk/anthropic   # Claude
pnpm add @ai-sdk/openai      # GPT
pnpm add @ai-sdk/google      # Gemini

# .env.local
ANTHROPIC_API_KEY=sk-ant-...
OPENAI_API_KEY=sk-...
GOOGLE_GENERATIVE_AI_API_KEY=...

Quick Start: Chat App

1. API Route (Backend)

// app/api/chat/route.ts
import { anthropic } from "@ai-sdk/anthropic"
import { streamText } from "ai"

export async function POST(req: Request) {
  const { messages } = await req.json()

  const result = streamText({
    model: anthropic("claude-sonnet-4-20250514"),
    messages,
  })

  return result.toDataStreamResponse()
}

2. Chat Component (Frontend)

// components/chat.tsx
"use client"

import { useChat } from "ai/react"

export function Chat() {
  const { messages, input, handleInputChange, handleSubmit, isLoading } = useChat()

  return (
    <div className="flex flex-col h-screen">
      {/* Messages */}
      <div className="flex-1 overflow-y-auto p-4 space-y-4">
        {messages.map((m) => (
          <div key={m.id} className={m.role === "user" ? "text-right" : "text-left"}>
            <span className={`inline-block p-3 rounded-lg ${
              m.role === "user" ? "bg-blue-500 text-white" : "bg-gray-100"
            }`}>
              {m.content}
            </span>
          </div>
        ))}
      </div>

      {/* Input */}
      <form onSubmit={handleSubmit} className="p-4 border-t">
        <input
          value={input}
          onChange={handleInputChange}
          placeholder="Type a message..."
          className="w-full p-3 border rounded-lg"
          disabled={isLoading}
        />
      </form>
    </div>
  )
}

That's it. You now have a streaming AI chat.

Switch AI Providers (Easy)

// Just change this line:
import { anthropic } from "@ai-sdk/anthropic"