Chatbots, automation and AI agents explained, so you know which one a vendor is selling.

The best free resources

• AI vs. automation: What's the difference?
  Plain comparison table: fixed-rule automation, single-judgment AI, and multi-step agents, with examples.
  Jessica Lau, Nicole Replogle, Zapier · Sep 2026

• Almost Timely News: What is Agentic AI?
  Defines an agent simply ("skills + schedule + plans") and the levels from chatbot upward.
  Christopher S. Penn, Almost Timely · Nov 2026

• The twilight of the chatbots
  Why work is moving from chatting step by step to handing whole tasks to agents.
  Ethan Mollick, One Useful Thing · Jun 2026

• Building effective AI agents
  The reference on workflows versus agents, and when a simple setup beats an agent.
  Erik Schluntz, Barry Zhang, Anthropic · Dec 2024

• AI Agents vs. AI Assistants
  Side-by-side of assistants that answer and agents that act, with risks of each.
  Charlotte Hu, Amanda Downie, Matthew Finio, IBM Think · Oct 2024

Curated by effectiveAI. Every link checked November 2026. Know a better free resource? Tell us.