'Infrastructure as Vibe' is a proposed paradigm shift where developers describe infrastructure intent in plain language and an AI-driven orchestration layer handles all provisioning, integration, and configuration automatically. Building on the evolution from ClickOps to IaC to PaaS, this approach eliminates the need to write declarative config entirely. The post defines three required properties: natural language interface, inference replacing declaration, and the platform absorbing integration work. It examines real-world examples (Vercel v0, Cloudflare, Claude Code with MCP tools), outlines where the paradigm works well (side projects, small teams, standard stacks) versus where it fails (regulated environments, mission-critical systems), and describes the technical stack underneath (deterministic detection, LLM intent parsing, orchestration, cost transparency, audit logging). Key conditions for success include reversibility, upfront cost visibility, ambient audit logging, real escape hatches, and opinionated defaults.