{"slug": "voice-commander-control-your-mac-with-hey-jarvis", "title": "Voice Commander: Control Your Mac with Hey Jarvis", "summary": "A developer at JPMorgan Chase built 45 AI tools that run locally on a MacBook using Ollama and open-source models like Llama 3.2, eliminating API costs and privacy concerns. The tools, available on GitHub, demonstrate how to run GPT-4-level models for free and privately.", "body_md": "Every token costs money. Every API call adds up. And your data goes to their servers.\n\n```\nbrew install ollama\nollama pull llama3.2\nollama serve\n```\n\nNow you have a GPT-4 level model running on your MacBook. Free. Private. Fast.\n\n``` python\nimport requests\n\ndef ask_local_ai(question):\n    r = requests.post(\n        \"http://localhost:11434/api/generate\",\n        json={\"model\": \"llama3.2\", \"prompt\": question, \"stream\": False}\n    )\n    return r.json()[\"response\"]\n\n# Works immediately, no API key needed\nanswer = ask_local_ai(\"Explain Docker in one paragraph\")\nprint(answer)\n```\n\n| Model | Size | Best For |\n|---|---|---|\n| llama3.2 | 2GB | General use |\n| codellama | 4GB | Code tasks |\n| mistral | 4.4GB | Fast reasoning |\n| phi3 | 2.2GB | Lightweight tasks |\n| gemma2 | 5.4GB | Complex reasoning |\n\nI built 45 tools using this stack. All free. All local. All open source.\n\n[github.com/amrendramishra/ai-tools](https://github.com/amrendramishra/ai-tools)\n\n*VP at JPMorgan Chase. Building AI tools at amrendranmishra.dev*", "url": "https://wpnews.pro/news/voice-commander-control-your-mac-with-hey-jarvis", "canonical_source": "https://dev.to/amrendra_n_mishra/voice-commander-control-your-mac-with-hey-jarvis-47ma", "published_at": "2026-08-02 04:20:42+00:00", "updated_at": "2026-08-02 04:37:49.929152+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "developer-tools", "ai-tools"], "entities": ["JPMorgan Chase", "Ollama", "Llama 3.2", "GitHub"], "alternates": {"html": "https://wpnews.pro/news/voice-commander-control-your-mac-with-hey-jarvis", "markdown": "https://wpnews.pro/news/voice-commander-control-your-mac-with-hey-jarvis.md", "text": "https://wpnews.pro/news/voice-commander-control-your-mac-with-hey-jarvis.txt", "jsonld": "https://wpnews.pro/news/voice-commander-control-your-mac-with-hey-jarvis.jsonld"}}