TutorialA hands-on guide to building an AI agent in 2026 — the five parts every agent needs, a working code example, the difference between a workflow and an agent, and the mistakes that break agents in production.
Read Article →An engineer's decision framework for choosing between LangChain, LangGraph, and CrewAI for AI agents in 2026, with code examples, cost benchmarks, and a battle-tested decision tree.
Read Article →A step-by-step LLM cost optimization playbook from a real production engagement. Semantic caching, prompt compression, and intent-aware model routing - with the exact numbers, code patterns, and pitfalls.
Read Article →A complete production tutorial for building a stateful LangGraph agent that pauses on high-risk actions, waits for human approval, and resumes from the exact checkpoint - with code, persistence, and battle-tested edge cases.
Read Article →Stop hiring 'prompt engineers'. A practical, founder-friendly guide to hiring AI engineers who ship production systems - with screening questions, red flags, and 2026 pricing benchmarks.
Read Article →When should you invest in fine-tuning versus a RAG pipeline? A practical decision framework with cost benchmarks, real-world examples, latency trade-offs, and a flowchart that gets to the right answer in under a minute.
Read Article →How to architect a multi-agent system where specialized agents collaborate without going off the rails. The supervisor-worker pattern, explained with a real e-commerce example, working code, and production guardrails.
Read Article →A neutral, framework-first guide to AI agent evaluation in 2026. Decision tree, comparison matrix for LangSmith, Langfuse, Braintrust, and the four eval layers every production agent needs.
Read Article →MCP is not a framework, it is a protocol. This is the production implementation guide nobody is publishing yet: server taxonomy, auth patterns, MCP vs function calling, and the failure modes you only learn the hard way.
Read Article →Naive RAG plateaus around 70% accuracy. Agentic RAG patterns - query rewriting, retrieval routing, self-correction, multi-hop, hybrid scoring - get you the next 25%. Decision tree, code patterns, and real benchmarks inside.
Read Article →Your agent made 14 LLM calls, used 3 tools, and gave the wrong answer. Without observability you spend a day reconstructing it. This is the 2026 observability stack and the four things to instrument first.
Read Article →Sub-700ms voice latency or your agent sounds robotic. Vendor-neutral comparison of Vapi, Retell, LiveKit Agents, and DIY (Twilio + Deepgram + GPT-4o + Cartesia). The latency budget that makes or breaks voice.
Read Article →An LLM router sends easy queries to cheap models and hard queries to expensive ones. Done right, it cuts your token bill 60% with zero accuracy loss. Decision matrix, comparison of OpenRouter, Portkey, and custom builds, plus a real $14K-to-$5K case study.
Read Article →
