An app I built a while ago just for myself that I use all the time to have disposable, low-overhead sessions with OpenRouter models: https://www.lightweightchat.com/ – it's open source and has macOS downloads if anyone else wants to use it though.
Lightweightlightweight — lightning-fast LLM chat for macOSA 2 MB native macOS chat app for OpenRouter. ≈35 MB idle memory.
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