Ollama + Open WebUI Self-Hosting Guide 2026 — Run Your Own AI for $0

Ollama + Open WebUI Self-Hosting Guide 2026 — Run Your Own AI for $0 ChatGPT Pro costs $200 a month. Claude Pro costs $20. Even the budget API tiers add up once you start building real workflows. There is another option: run your own AI locally or on a cheap VPS, with a ChatGPT-style interface, for $0 to $5 a month. No API keys. No usage limits. No data leaving your machine. The stack is Ollama for running models and Open WebUI for the browser interface. Ollama has hit 52 million monthly downloads as of Q1 2026 — this is not experimental software anymore. Open WebUI gives you a polished chat interface with conversation history, model switching, document upload, and multi-user support. This guide covers two paths: a 5-minute local setup for your Mac or Linux machine, and a VPS deployment on Hetzner for when you want 24/7 availability without running your laptop all day. We will be honest about what works well, what does not, and when you should just use an API instead. Why Self-Host You