<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>The Agentic Review — Sema4.ai</title><description>Coverage of Sema4.ai from The Agentic Review.</description><link>https://agentic.review/</link><language>en-us</language><item><title>Comparative Notes: AutoGen, LangGraph, CrewAI, Letta, and Sema4.ai</title><link>https://agentic.review/articles/comparative-notes-autogen-langgraph-crewai-letta-sema4/</link><guid isPermaLink="true">https://agentic.review/articles/comparative-notes-autogen-langgraph-crewai-letta-sema4/</guid><description>Five products at five different layers of the agentic stack. A qualitative teardown across topology, surface, scope, and the kind of user each one is for.</description><pubDate>Tue, 05 May 2026 00:00:00 GMT</pubDate><category>LangGraph</category><category>CrewAI</category><category>AutoGen</category><category>Letta</category><category>Sema4.ai</category><category>comparison</category><author>Hadassah Stein</author></item></channel></rss>