OpenRouter is presented as an **AI Chat Playground** to **Compare AI Models Side by Side**. The site navigation includes **Models**, **Fusion**, **Chat**, **Rankings**, **Apps**, and **Docs**.

On the pricing page, OpenRouter offers **Plans for indie hackers, AI native startups, and enterprises**: **Free**, **Pay-as-you-go**, and **Enterprise**. Listed features include **Chat and API Access**, **Activity Logs & Export**, **Auto-routing, preferred vendor selections**, **Budgets & Spend Controls**, **Prompt Caching**, **Management API key**, **Admin Controls**, **Data Policy-Based Routing**, **Managed Policy Enforcement**, **SSO/SAML**, and **Contractual SLAs**.

The pricing page lists **25+ free models** and **4 free providers** on the Free plan, and **400+ models** and **70+ providers** on Pay-as-you-go and Enterprise. Pay-as-you-go states: **No minimum spend. Prices based on models**; Enterprise states: **Volume commitments. Prices based on models**.

The provided source material does not describe a self-hosted version, deployment steps, or resource requirements; it presents OpenRouter as a hosted chat/API service. Users should evaluate network access, payment options, compliance, and data policy requirements for their own environment.