CPU vs GPU vs TPU: When Each Actually Makes Sense

The machine learning hardware landscape offers three major options: CPUs, GPUs, and TPUs. Marketing materials suggest each is revolutionary, benchmarks show all three crushing specific workloads, and confused developers end up choosing hardware based on what’s available rather than what’s optimal. A startup spends $50,000 on TPUs for a model that would run faster on … Read more

How Agents Decide What Tool to Call

The promise of AI agents is autonomy—systems that reason about tasks, select appropriate tools, and execute multi-step workflows without constant human guidance. But watch an agent in action and you’ll often see baffling tool selection: calling a web search when a calculator would work, invoking database queries for information in recent conversation, or repeatedly choosing … Read more

How to Evaluate Agentic AI Systems in Production

The landscape of artificial intelligence has evolved dramatically from simple prediction models to sophisticated agentic systems that can perceive their environment, make decisions, and take actions autonomously. Unlike traditional AI systems that merely respond to inputs, agentic AI actively pursues goals, adapts to changing conditions, and operates with varying degrees of independence. As organizations increasingly … Read more

Why Stateless Agents Don’t Work

The appeal of stateless agent architectures is undeniable. No state management complexity, no memory overhead, no synchronization issues, perfect horizontal scaling. Each request arrives, the agent reasons, executes actions, returns results, and forgets everything. This simplicity seduces developers building AI agent systems, particularly those experienced with stateless web services where this pattern succeeds brilliantly. Yet … Read more

Designing Local LLM Systems for Long-Running Tasks

Local LLM applications face unique challenges when tasks extend beyond simple queries and responses. Analyzing hundreds of documents, generating comprehensive reports, processing entire codebases, or conducting multi-hour research requires architectures fundamentally different from chat interfaces. These long-running tasks introduce concerns about reliability, progress tracking, resource management, and graceful failure handling that quick queries never encounter. … Read more

How Local LLM Apps Handle Concurrency and Scaling

Running large language models locally creates unique challenges that cloud-based APIs abstract away. When you call OpenAI’s API, their infrastructure handles thousands of concurrent requests across distributed servers. But when you’re running Llama or Mistral on your own hardware, every concurrent user competes for the same GPU, the same memory, and the same processing power. … Read more

How to Build a Multi-Agent System Using LangChain

Multi-agent systems represent one of the most powerful patterns in AI development, enabling complex tasks to be decomposed across specialized agents that collaborate to achieve goals beyond what any single agent could accomplish. While a single LLM agent can handle straightforward tasks, real-world applications often require orchestrating multiple specialized agents—one for research, another for data … Read more

Why Bigger LLMs Don’t Always Mean Better Results

The AI industry’s obsession with parameter counts creates a persistent myth: more parameters equal better performance. When GPT-4 launched with rumored trillions of parameters, it seemed to confirm this assumption. Yet practitioners deploying models in production repeatedly discover a counterintuitive truth—smaller models often deliver better results than their larger counterparts for real-world applications. This isn’t … Read more

Chat Models vs Instruction Models: What’s the Difference?

When browsing model repositories like Hugging Face, you’ll encounter confusingly similar model names: “Llama-3-8B,” “Llama-3-8B-Instruct,” and sometimes “Llama-3-8B-Chat.” These aren’t just marketing variations—they represent fundamentally different models trained for different purposes. Understanding the distinction between base models, instruction-tuned models, and chat-optimized models determines whether your application succeeds or produces frustrating, unusable outputs. The confusion is … Read more

When a 7B Model Beats a 13B Model

The assumption that larger language models always perform better is deeply ingrained in the AI community. More parameters mean more knowledge, better reasoning, and superior outputs—or so the conventional wisdom goes. Yet in practical deployments, 7B parameter models frequently outperform their 13B counterparts on real-world tasks. This isn’t a statistical anomaly or measurement error; it … Read more