MiniMind
Understand anything — even if you’re 5.
What it does
Ever wished you could ask a question and actually understand the answer? MiniMind makes that possible — by explaining complex things in a way even a 5-year-old (or your sleep-deprived adult self) can grasp. No jargon. No logins. Just clarity, instantly.
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Little AnswersDec 2025 · littleanswers.space · ▲127Help parents explain the world, one question at a time
- MTMade this with my daughter to help kids ages 2 to 4 learn logic2019 · countable.github.io · ▲367
- TLTiny logic and number games I built for my kids2025 · quizmathgenius.com · ▲87
I’ve been building a few small games to help kids (and curious adults) build reasoning and logic skills. Think Word Ladder, Prime Hunter, Math Maze ,all in the browser, no installs. Would love feedback or suggestions for new types of puzzles
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I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
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Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…
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Launched alongside, May 2025
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