So here's what happened: deepSeek V4 vs DeepSeek V4 Flash: What I Learned as a Junior Dev

Okay so I have to be honest with you. When I graduated from my coding bootcamp six months ago, I thought I knew AI APIs pretty well. We spent like two whole weeks on it. I felt like a genius. Then I got my first real job and my senior dev asked me to "benchmark the DeepSeek options for our internal pipeline" and I just stared at my screen like a deer in headlights.

What even is a DeepSeek V4 Flash? Is it a camera? A snack? I had no idea what I was doing. But after weeks of poking around, reading docs until my eyes hurt, and annoying my team with questions, I actually get it now. And honestly? Some of this stuff genuinely blew my mind. Let me walk you through what I learned so you don't have to suffer like I did.

The First Thing That Shocked Me: There Are SO Many Models

Before this project, I thought there were like... three AI models. ChatGPT, Claude, and maybe Gemini if you were fancy. That's it. That's what bootcamp taught me.