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Agent frameworks
What should I use to build my own AI agent? Updated 2026-10-16.
OpenAI Agents SDK
Lightweight, well-documented primitives for tools, handoffs and tracing.
LangGraph
Stateful, controllable agent graphs. More setup, but more control.
CrewAI
Quick multi-agent 'crews' with roles. Easy to start with.
n8n
Visual workflow automation with AI agent nodes, and you can self-host it.
FAQ
What should I use to build my own AI agent?
Our ranked picks are OpenAI Agents SDK, LangGraph, Vercel AI SDK, CrewAI, n8n. Top pick: OpenAI Agents SDK — Lightweight, well-documented primitives for tools, handoffs and tracing. Pricing note: Free, open-source.
What is the #1 pick in Agent frameworks right now?
OpenAI Agents SDK. Lightweight, well-documented primitives for tools, handoffs and tracing. See the official site for current pricing (Free, open-source).
Which tools in Agent frameworks have a free tier?
These picks mention a free tier: OpenAI Agents SDK, Vercel AI SDK, n8n. Always confirm on the official pricing page.
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