This article compares running AI agents locally on a Mac Mini with Ollama and open-source models versus hosting them on a cloud server using Claude or Gemini APIs. It breaks down upfront and monthly costs—about $35/month local amortized versus roughly $73 for Gemini and $123 for Claude—and highlights performance, privacy, and usage trade-offs.

• Local Mac Mini setup costs ~$35/month amortized over 3 years vs ~$73/month for Gemini API or ~$123/month for Claude API on a cloud VPS
• Over a year, local stays around $420 while Gemini runs ~$876 and Claude ~$1,476
• Local open-source models handle summarization, document search, and private data well but lag behind Claude/Gemini on coding, complex reasoning, and long-context tasks
• Cloud pay-per-use makes sense for occasional agent use, while local hardware pays off for daily or nonstop operation