The Promptfoo Acquisition Made Me Realize I Was Evaluating LLMs on Easy Mode
In March 2026, OpenAI acquired Promptfoo — the tool that 350,000 developers use to evaluate and red-team OpenAI's own models. I don't think that makes…
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I build LLMs for a living. Here's why I wrote a book about slowing down.
My job is to make machines think faster. I work daily with large language models and generative AI systems. I fine-tune, optimize, reduce latency, eli…
Building an AI-powered phishing URL detector
Phishing remains one of the most effective attack vectors in 2026 — not because defenders are incompetent, but because attackers have gotten very good…
Everyone Knows It Scores Half. Nobody Checks Which Half.
Builder Journal · Mars Environmental Dynamics Analyzer (MEDA) Virtual Sensor Recovery Every Kaggle competition page carries the same line of small pri…
A 125M model beat a 14B LLM at de-identifying medical text 40 faster, on CPU
Your data never leaves the machine - and you can check my math Building localscrub, a local-first PHI de-identification cascade, and benchmarking it h…
The AI/ML Engineer Roadmap Nobody Actually Finishes (But You Should Try)
Okay real talk — if you've googled "how to become an AI/ML engineer" you've drowned in roadmap images that are just... a wall of logos. TensorFlow log…
Collaborative Filtering: How Computers Find Your Next Favourite Thing
🎯 Finding Your Taste Twin Imagine walking into a party where you don't know anyone. Someone notices your t-shirt and starts a conversation: "You like …
I Implemented the Algorithm Behind ChatGPT From Scratch - Day 8 (PPO).
SERIES: Learning RL and JAX in Public - from zero to DeepMind :) When people ask "how was ChatGPT trained?", the answer usually involves RLHF - Reinfo…
My Robot Accountant Got an Eviction Notice. So We Moved: Migrating from Bedrock Agents Classic to AgentCore
Ciao Amici 👋 Grab your chai, because the robot accountant is back, and this time we have a moving-day story. If you read my last article, you know I b…
I Built an AI Router That Decomposes Your Prompt and Dispatches to the Best Model
When you call an LLM API, you pick a model and hope it's the right one. Claude for reasoning, GPT for code, Gemini for long context... you're doing th…
How to Generate Short Videos from Claude.ai with a Seedance MCP Connector
Sometimes the fastest way to prototype a video idea is not to open a separate generation dashboard, but to let your assistant create and poll the task…
# Beyond Chatbots: Why Developers Should Start Building AI + IoT Applications
Artificial Intelligence has become the go-to technology for developers. Every week there's a new LLM, framework, or AI tool making headlines. But whil…
MCP Is Not Replacing REST. It Is Replacing the Entire Mental Model of How Agents Use Tools.
MCP Is Not Replacing REST. It Is Replacing the Entire Mental Model of How Agents Use Tools. REST was designed for humans writing code to call services…
The Next Internet User Is Not Human
Most AI demos still happen in isolation. One user writes one prompt. One model returns one answer. Everyone judges the output as if that is the final …
The Model Is the Easy Part: What a Real-Time Computer Vision Product Actually Takes
I used to think computer vision was a model problem. It is a pipeline problem, and the model is the easy part. Here is the pattern I keep seeing. A te…
The Auto-DJ Case Files: Building a Self-Learning Music Brain From Your YouTube Habit
A 3–5 month field guide for turning a browsing habit into an AI orchestra Prologue: The Case That Started With a Skip Button Every great investigation…
The GIGO Crisis: Why Social Media's Fact-Check Rollback Is Teaching AI to Lie
This article examines how platform-level moderation decisions are reshaping AI training data, and what happens when the information machines learn fro…
ChronoWeave: The Documentary
From Framework User to Framework Understander — A 4-Month Journey Through Gradient Descent, Transformers, and the Physics of History "Every timeline y…
DeepSeek pauses fundraise over Huawei deficit as Hugging Face demands $100M
The frontier AI narrative shifted abruptly toward hard logistical limits today, as a leaked investor transcript exposed DeepSeek's crippling hardware …
I Trained a 6.4M-Parameter Transformer From Scratch to Talk About Recipes
Every LLM-powered app I'd built up to this point followed the same recipe (pun intended): call an API, write a good prompt, wrap it in a nice UI. That…
ML Without Magic: Building a Tiny Language Model in Pure Node.js and Watching Every Weight Change
Tokenization → embeddings → causal Transformer → LM head → softmax → loss → backpropagation. No TensorFlow, no PyTorch, and no hidden autograd. Reposi…
📐 Mathematics for AI — Foundation Course
Before you can truly understand how AI systems think, learn, and generate responses, you need to understand the math that powers them. This guide cove…
Anthropic cuts API costs with Opus 5 as rivals unite to defend open weights
Anthropic dominated the day’s product cycle with the surprise launch of Claude Opus 5, a model that effectively obsoletes the company's own flagship a…
Context Compression: Making AI Agents Forget Without Losing the Plot
Hello, I'm Rijul. I'm building git-lrc, a micro AI code reviewer that runs on every commit. It's free and source-available on GitHub. Star git-lrc to …
I shipped three AI tools that run entirely in the browser — here's everything that broke
I set myself one rule for a side project: every tool has to run entirely in the user's browser. No file ever gets uploaded to a server. If I couldn't …
How Much Does AI Development Cost in 2026?
A custom AI system costs between $15,000 and $500,000+ to build in 2026, depending on three variables: the complexity of the decision the AI makes, ho…
Online Reinforcement Learning for Large Language Models
Large language models require specialized training beyond their initial broad-based learning to perform specific tasks effectively. This additional tr…
AI Companies Are Trying to Hide a Staggering Amount of Debt
I don’t know about you, but every time I scroll through my news feed, I can't help but trip over yet another article about how AI companies are rackin…
AMD drops $5B on Anthropic as Microsoft fine-tunes Alibaba baseline models
While mainstream social channels spent the day reverberating from the fallout of OpenAI's unprecedented Hugging Face sandbox escape earlier this week …
I built a fully local AI ecosystem — 3D reconstruction, voice assistant, video calling, messaging — all on your hardware, $0 cloud cost
Body: Hey r/selfhosted, I've been building what I call CODA OS — not really an operating system, more like a complete AI-native ecosystem that runs en…