
Best AI Agent Frameworks in 2026: LangChain, CrewAI, AutoGen, and More
Compare the top AI agent frameworks of 2026: LangChain, LangGraph, CrewAI, AutoGen, Semantic Kernel, OpenAI Agents, and LlamaIndex. Includes framework selection guide.

Compare the top AI agent frameworks of 2026: LangChain, LangGraph, CrewAI, AutoGen, Semantic Kernel, OpenAI Agents, and LlamaIndex. Includes framework selection guide.

OpenAI releases GPT-5.3-Codex, a frontier coding model that is 25% faster, sets new records on SWE-Bench Pro and Terminal-Bench 2.0, and was instrumental in creating itself.

Anthropic launches Claude Opus 4.6 featuring agent teams, adaptive thinking, 1M token context window, and state-of-the-art performance on Terminal-Bench 2.0 and Humanity's Last Exam.

Z.ai releases GLM-5, a 744B parameter open-source Mixture-of-Experts model purpose-built for agentic tasks, scoring 77.8% on SWE-bench Verified and 56.2% on Terminal-Bench 2.0.

A beginner-friendly explanation of AI agents, covering what makes them different from chatbots, real-world examples, key frameworks, and the growing agent economy.

The AI agent market reached $7.6 billion in 2025 with 49.6% projected annual growth. Gartner confirms 40% of enterprises will have dedicated AI agent teams by end of 2026.