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

· 6 min read

Kimi K2 Thinking Model: Open-Source Release & Key Highlights

Guess what? I've been losing sleep over a model recently. Since last year, I've been quietly watching the folks at Kimi. K2, K2.5, K2.6... I've watched them the

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· 6 min read

SFT: Thought It Would Be the Easiest, Ended Up Being the Worst

A couple of days ago, a friend came to me, saying he was trying to figure out how to turn a pre-trained model into a real assistant, and he asked me where he sh

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· 7 min read

Friend, have you ever noticed something deeply unsettling

Friend, have you ever noticed something deeply unsettling? Come, let's do an experiment. Open Zhihu, search for a popular question, then scroll past the tenth p

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· 6 min read

You Show ChatGPT a CT Scan? It Says: "I Can't See."

The other day, a friend came to me urgently: "Isn't ChatGPT supposed to be amazing? Get it to look at this CT scan for me and tell me if there's anything wrong

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· 6 min read

First Question: What Big Problem Did BEVFormer Actually Solve?

Believe it or not? The first time I saw the title of the BEVFormer paper, I thought to myself, "Here we go again?" — just another Transformer knockoff, right? B

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· 5 min read

Interviewing for a Large Model Position? This Set of LoRA Questions Will Instantly Reveal Whether You Truly Know Your Stuff or Just Reciting Lines!

Have you ever met someone like this? Their resume says "Proficient in LoRA fine-tuning," but when you dig into it, all they can muster is "saves GPU memory." Pu

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· 6 min read

But honestly, I used to hate doing this.

Okay, based on the original text you provided, I've fact-checked and adjusted the language style. The main corrections were for inaccuracies in model version nu

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· 5 min read

What problem does RoPE actually solve?

Speaking of positional encoding, I have a love-hate relationship with it. Last week, I was tuning a long-text model, and after 4,000 tokens, the attention score

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· 5 min read

I Almost Couldn't Sleep Last Night—DeepSeek Has Truly Lost Its Mind

At 2 AM, I was curled up on the sofa writing code with Cursor when my phone suddenly buzzed. I glanced at it—a push notification from DeepSeek: V4 Pro API perma

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· 6 min read

You Think the Bottleneck Is Compute? Wrong. The Real Achilles' Heel of Large Models Is Memory Bandwi

Okay, let me fact-check and polish this, removing the AI tone. Here's the revised version: Three months ago, I almost got driven crazy by a 70B model. Our team

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· 6 min read

Argument 1: Computational efficiency isn't about "saving" — it's about "liberating"

You know, I've been writing this column for ten years and have seen countless tech concepts hyped up and then fizzle out. But MoE (Mixture of Experts) — I have

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· 7 min read

Can AI Really Handle Complex Projects?

Okay, let me check the facts and polish the text, removing the AI-generated feel. Let me tell you a true story. I have a friend who's been working on enterprise

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