CowAgent is a free, open-source alternative to ChatGPT, Claude, Gemini. It can be used without subscription fees — and its source code is open for anyone to inspect, modify and self-host.
Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat) Its license (MIT) is permissive: free to use, modify and redistribute — including inside commercial and proprietary products.
What switching gets you
No subscription, no per-seat pricing — free forever, for individuals and companies alike.
Your data stays with you: it can run locally or on your own servers, with no vendor lock-in.
The source code is public — auditable, extensible and maintained in the open by its community.