curso-langchain/slides/pages/alternatives/07.md

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¿Agentes con APIs Nativas?

Cada provider tiene su propio enfoque

OpenAI: Assistants API

const assistant = await openai.beta.assistants.create({
  name: "Analyst", tools: [{ type: "code_interpreter" }], model: "gpt-4.1",
});
const thread = await openai.beta.threads.create();
const run = await openai.beta.threads.runs.create(thread.id, { assistant_id: assistant.id });

• Agentes con estado, tools built-in (code interpreter, file search)

Anthropic: Claude Agent SDK

• Agent SDK con tools built-in (Bash, Read, Edit, Web...)
• O tool use manual si prefieres control total

Google (Gemini): @google/genai SDK

import { GoogleGenAI } from "@google/genai";
const ai = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });
const response = await ai.models.generateContent({
  model: "gemini-2.5-flash", contents: "Explica RAG",
});

• Function calling similar a OpenAI
• Vertex AI Agents Builder para low-code enterprise