Open-Source

Build a Tiny LLM and Finally Understand How Language Models Actually Work TL;DR A developer named arman-bd posted a project on Hacker News called GuppyLM — a deliberately tiny language model built specifically to demystify how LLMs work under the hood. The post scored 193 points and sparked discussion in the community, signaling real appetite for educational, stripped-down AI implementations. If you’ve ever wanted to understand what’s actually happening inside ChatGPT or Claude without drowning in research papers, this kind of project is exactly the entry point you’ve been looking for. The source code is available on GitHub. ...

Miasma: The Open-Source Trap That Sends AI Web Scrapers Into an Endless Rabbit Hole TL;DR A new open-source tool called Miasma is making waves in the developer community by turning the tables on AI web scrapers. Instead of blocking bots outright, it lures them into an endless “poison pit” of fake content, wasting their time and resources. The project hit Hacker News with a score of 303 and sparked 218 comments — a clear signal that website owners are hungry for smarter defenses against aggressive AI crawlers. If you’re tired of having your content harvested without consent, Miasma might be worth a look. ...

I only have one Reddit post with minimal metadata (no summary, no comments extracted). Let me write the best article I can from what’s available — the title itself is quite descriptive — while being careful not to invent features or details not in the source package. Free Local AI Image Search: Find Your Photos by Describing What’s in Them TL;DR A developer has released a free, locally-running AI image search application that lets you find photos simply by typing a description of what they contain — no cloud uploads, no subscriptions, no API keys required. The project was shared on Reddit’s r/artificial community and generated discussion among AI enthusiasts. It runs entirely on your own machine, meaning your images never leave your device. If you’ve ever lost track of a photo buried deep in a folder, this tool is designed for you. ...

Are AI Note-Taking Apps Actually Worth It, or Just Overhyped? TL;DR AI note-taking apps are everywhere right now, promising to transform how we capture meetings, ideas, and conversations. But the community isn’t buying the hype wholesale — a Reddit thread with 20 comments and meaningful engagement asks the question bluntly: are these tools overhyped? The space ranges from free open-source options like Whisper and Hyprnote to polished commercial products like Bluedot and Otter.ai. Whether they’re worth it depends heavily on your use case, workflow, and tolerance for yet another subscription. ...

MicroGPT: Finally, a GPT Model You Can Actually See Inside Your Browser TL;DR MicroGPT is an educational GPT implementation that lets you visualize how transformer models work directly in your browser. Posted on Hacker News in mid-February 2026, it’s gained significant attention (145+ upvotes) from developers wanting to understand what’s actually happening under the hood of models like GPT-5, Claude 4.6, and Gemini 2.5. Unlike production-scale models with billions of parameters, MicroGPT is deliberately tiny—making every layer, attention head, and token prediction visible and interactive. It’s not meant to compete with frontier models, but rather to demystify them. ...

Off Grid: Run Full-Featured AI on Your Phone Without Internet TL;DR A new open-source project called “Off Grid” lets you run AI text generation, image creation, and vision capabilities directly on your smartphone—completely offline. Developer Ali Chherawalla’s GitHub project has gained traction on Hacker News with 61 upvotes and sparked discussions about on-device AI performance. This isn’t just another wrapper around cloud APIs; it’s genuine local inference running entirely on your mobile hardware. If you’ve ever wanted AI capabilities that don’t require an internet connection, don’t share your data with third parties, and work anywhere (literally), this project deserves your attention. ...