Prompt Natus

What it does

Free prompt optimizer that uses your own API key—your data stays private. One-click optimization works on ChatGPT, Claude, Gemini, and more. No sign-ups or subscriptions. Just better prompts.

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  AI Prompt BuilderMar 2026 · understandingai.net · ▲24

  Free master prompts for ChatGPT, Claude, Gemini & more

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  Prompt2GoNov 2025 · ▲19

  Prompt optimizer available in every app

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  Genie PromptOct 2025 · ▲8

  Get a professional prompt with a magical touch effortlessly

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  Prompt OptimizerNov 2025 · getpromptoptimizer.com · ▲10

  Professional prompt engineering without the learning curve!

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  Prompt Enhancer AIJul 2026 · promptenhancer-50h.pages.dev · ▲1

  Free AI Prompt Optimizer for ChatGPT, Gemini & Claude

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  FlashPrompt2025 · ▲11

  The Fastest Prompt Manager for ChatGPT, Claude, Gemini, etc.

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  I trained a 125M model to autocomplete piano on-device▲598

  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.

  AI · 18d ago · simedw.com

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  Astute▲585

  Automate your B2B brand going viral, with new media creators

  AI · 19d ago · company-app.joinastute.com

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  Grok Bot▲547

  AI teammates that you can give real work to

  AI · 26d ago · x.ai

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  Needle2: 14MB agentic LLM for phones, wearables, smart home and robots▲537

  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 · 28d ago · cactuscompute.com

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  Monid▲475

  One wallet, every paid tool your agent needs

  AI · 7d ago · monid.ai

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  Clara AI SDR▲460

  Turn website visitors into qualified pipeline

  AI · 20d ago · clarasdr.ai

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  Guideflow▲1,341

  The AI demo automation platform for SaaS

  AI · Nov 2025 · guideflow.com

• IB
  I built a synth for my daughter▲1,278

  Life & fun · Nov 2025 · bitsnpieces.dev

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  Welltory▲1,030

  Stop energy drain

  Work · Nov 2025 · welltory.com

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  Gemini 3▲1,007

  Bring any idea to life with multimodal capabilities

  AI · Nov 2025 · blog.google

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  TrustMRR▲836

  The database of verified startup revenues

  Growth · Nov 2025 · trustmrr.com

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  Life & fun · Nov 2025 · boing.greg.technology