I built an LLM chat app because we shouldn't need 10 AI subscriptions
I'm lost between ChatGPT vs Claude vs Gemini... which subscriptions to take? With Cursor and all these specific AI tools, I just wanted one simple chat app where I can use any model and pay only when I use it. Couldn't find one, so I built one. Pay only for what you use. Your prompts and docs, knowledge bases work with every model - no more copy-pasting between apps. Started as a personal project, but thought someone else might benefit from this too. https://prismharmony.com/chat What do you think?
In plain words
PrismHarmonaly Chat is a unified chat application that lets users access multiple AI models—including ChatGPT, Claude, and Gemini—from a single interface. Rather than requiring separate subscriptions, users pay only for the models they actually use. The app allows prompts, documents, and knowledge bases to work across all supported models, eliminating the need to switch between different applications or copy content between platforms. It targets users overwhelmed by managing multiple AI tool subscriptions and seeking a streamlined alternative.
written from the facts on this page · September 2026
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