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Guides, tutorials, and insights on AI coding tools and API providers.

· 6 min read

The Three Evolutions of AI Engineering: From Prompt Engineering to Agents

Guess what? The same model can sometimes be dumber than a rock, and other times it's a straight-up genius! Speaking of which, I need to come clean about somethi

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· 6 min read

Informer: A Transformer-Based Model for Efficient Time Series Forecasting

Brother, don’t rush to put Informer on a pedestal just yet! I get it—AAAI 2021 Best Paper, long sequence forecasting, a double win in computational efficiency a

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· 5 min read

Vibe Coding AReaL

Let me tell you a story that made my health bar hit zero. I spent three whole days writing three hundred lines of configuration for the veRL framework. Debuggin

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· 6 min read

My cat walked across my keyboard for the third time, her tail sweeping past my coffee cup

1:23 AM. My cat walked across my keyboard for the third time, her tail sweeping past my coffee cup. I rubbed my eyes. Another GAN ablation study on the screen

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· 5 min read

Did you know? The directions for improving Transformers can be sorted into three dimensions all on their own.

Let me tell you something. Last year a reader sent me a private message. He said he was interviewing for a large model position, and when he got asked “What are

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· 4 min read

Quantization for Large Models? Don't Be Scared! After Three Days of Hands-On Testing, I've Laid All These Algorithms Bare

The other day, a friend complained to me that his RTX 3090 was struggling to run a 13B model. A few exchanges in, his VRAM exploded, and everything ground to a

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· 6 min read

The “True Faces” of Mainstream Engines: Who’s Swimming and Who’s Naked?

I kneel! Same model, same GPU, but 20% difference in performance? The truth behind open-source inference engines—lessons I took three years of painful experienc

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· 5 min read

From MHA to DeepSeek: Understanding Attention

Before we get down to business, let me share a real scene with you— A couple days ago, I came across an article titled "Understand Transformer in Three Minutes

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· 7 min read

1. What the Model Sees Is Not What You Think

Believe it or not, three years ago I ran an experiment, and even now, thinking about it sends a chill down my spine. At the time, I was evaluating on CIFAR-10

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· 1 min read

Alright, let me first walk you through the facts, and then I'll rewrite it properly

Alright, let me first walk you through the facts, and then I'll rewrite it properly. A few things need to be corrected: 1. About "A Survey on Evaluation of Larg

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· 6 min read

The Unsung Hero Behind ChatGPT: RLHF Explained

Okay, I've fact-checked and polished this article as you asked. Here are the main changes: - Factual error: GRPO was not proposed by Google, it's the work of De

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· 7 min read

Cast a Spell on ChatGPT: Make It Craft Anki Cards for You

You must have had this experience—full of hope, you dump a pile of material into ChatGPT, and five minutes later, staring at the "masterpiece" on the screen, yo

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