AI Agents & Automation: RAG, Workflows & Guides

OpenAI shipped "ChatGPT 5.5 (GPT-5.5)" on April 23, 2026. Pitched as "a new class of intelligence for real work and AI agents," it scored 82.7% on Terminal-Bench 2.0 — pulling ahead of Claude Opus 4.7 (69.4%) and Gemini 3.1 Pro (68.5%) to reclaim the top spot. But API pricing doubled vs GPT-5.4 ($5/$30 per MTok), and Claude Opus 4.7 still beats it on SWE-Bench Pro. This article gives you the full picture — features, benchmarks, pricing, plan availability, head-to-head with Claude and Gemini, and how to pick — all grounded in official sources.

RAG (Retrieval-Augmented Generation) gives a model relevant documents when it answers. This beginner-friendly guide illustrates the three-step process, explains vector databases, presents a LangChain example, and compares RAG with fine-tuning. Internal Q&A, customer support, legal and medical uses are discussed alongside evaluation, pricing, and confidentiality checks.

Now that Claude Code and OpenAI Codex can auto-generate infrastructure code (Terraform, Docker, Ansible, and more), some people are asking: "Are infrastructure engineers about to become obsolete?" The reality is more nuanced. This article maps out what AI is actually good at, the areas where only humans can take ownership — physical work, incident judgment, security accountability — and how infra engineers should evolve in the AI era.

OpenClaw is the fastest-growing GitHub project of 2026 — an open-source AI assistant that connects to WhatsApp, Slack, Discord and 50+ platforms. But what exactly can it do, and what are the risks? From architecture to security concerns, here's everything you need to know.

An AI agent chooses steps toward a goal, uses permitted tools, and checks results as it works. This guide explains how agents differ from answer-focused chat, their capabilities and limits, and how to choose a service. Completion and correctness are not guaranteed.

With Anthropic's Claude Agent SDK, you can build AI agents that autonomously reason and execute tasks. This guide covers everything from core concepts to hands-on implementation.