Hemba
Give your startup a heartbeat
What it does
See a live heartbeat of your business — sales, payments, and finances all pulsing in real time. Connect your bank account, Shopify, Stripe, and more in one place so you can stop switching tabs and start actually growing. Your AI agent watches your heartbeat score around the clock, surfacing insights to keep it optimal — and if anything dips, it patches it up for you automatically. Built for founders who'd rather ship than admin.
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AI Pages by HeartbeatJul 2026 · heartbeat.chat · ▲18AI landing pages to sell your community–right where it lives
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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
