Beampost — Find your first users, fast
AI discovers the right communities for your startup
What it does
Paste your URL. Find your users. In under 3 minutes. Beampost uses AI to analyze your product and discover where your target audience talks — across Reddit, Hacker News, Discord, Quora, Stack Overflow, LinkedIn, and more in a single scan. Every result is scored by intent, audience fit, and freshness. You get AI-drafted replies tailored to each thread — ready to copy and post. Set up alerts for new relevant conversations. Your feedback improves future results automatically.
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AI-Researched Social Media Post IdeasNov 2025 · ▲31Fill the Content Gap between You and Your Audience
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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
