Cosmo

What it does

Cosmo is an always-on-top desktop companion with big expressive eyes and a local-first voice. Curious heart, sharp mind — he hears you, helps you, and lives on your machine.

Cosmo is a free, open-source AI desktop companion for macOS: an expressive on-screen character you talk to, with on-device speech-to-text and text-to-speech and a pluggable local (Ollama) or cloud LLM brain. Private by design.

A tiny companion that lives on your desktop — big expressive eyes, a voice you can talk to, and a knack for actually getting things done. Childlike heart, sharp mind. Big animated eyes that blink, glance around, follow your cursor, and shift mood — curious, thinking, happy, sleepy. He feels present, not like a chat box. On-device speech recognition, a wake word ("Cosmo"), natural end-of-turn detection, and a warm voice back. Push-to-talk by default; go hands-free if you like. Searches the web, opens apps and sites, sets timers and reminders, takes notes, checks the weather, controls music — through a clean, extensible tool system. Cosmo is built local-first. The things that should stay on…from iamcosmo.in

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