Show HN: I made a small AI chat app that lets you chat with 4 models at once (omny.chat)

A new AI chat application, OmnyChat, allows users to engage with multiple AI models—such as GPT-5.2, Claude 4.5, and Gemini 3 Pro—simultaneously, streamlining the selection process for the best AI tool for specific tasks. By offering side-by-side comparisons, OmnyChat eliminates the need for multiple subscriptions, reducing the cost to just $15 per month, which can save users upwards of $3,900 annually compared to individual subscriptions. This innovative platform is positioned as a productivity operating system rather than a traditional chatbot, designed for serious AI users who need quick access to varied model responses. The significance of OmnyChat lies in its potential to enhance efficiency in AI utilization. Users can test prompts across up to 120 models from leading providers without the hassle of switching between applications or purchasing several subscriptions. This comparative approach enables users to learn which models excel in specific tasks—like coding or generating SEO content—without trial and error. With automatic updates for new models and a visible message credit system that helps manage usage and costs, OmnyChat promises to empower developers and creators to make informed decisions swiftly, fostering a smarter AI workflow.