Find domain experts without breaking a sweat

import { NextRequest } from "next/server";
import { streamText } from "ai";
import { createOpenAI } from "@ai-sdk/openai";

const openai = createOpenAI({ apiKey: process.env.OPENAI_API_KEY! });

export async function POST(req: NextRequest) {
  const { messages } = await req.json();
  const result = await streamText({
    model: openai("gpt-4o-mini"),
    messages,
    // Retrieval is as simple as adding context
    system: "You are Caracal—succinct, helpful, and safe.",
  });
  return result.toAIStreamResponse();
}