MagicSpell
Stop sharing prompts for free. Sell them instead.
What it does
AI creators are giving away their best prompts for free. Why? Prompts are digital assets. So we built MagicSpell.cc — a marketplace where prompt creators can list, sell, and discover powerful AI prompts. 🪄 Create once 💰 Sell unlimited times 🔥 Discover high-performing prompts 🎯 Built for AI art, writing, coding & automation creators Whether you're a prompt engineer or just really good at talking to AI Your prompts have value. Stop posting them for likes. Start selling them for income.
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Magic PromptApr 2026 · magicpromtai.pages.dev · ▲1Transform simple ideas into high-quality AI prompts
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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…
AI · 27d ago · cactuscompute.com
