Is there an opensource version of such a tool. I would really like a desktop app and use different models instead of a CLI.
OpenCode has a desktop version, it's decent: https://opencode.ai/download
Try paseo.sh . It does need the CLIs (claude, opencode, pi etc) running but it is a great interface for desktop and mobile.
OpenCode has a desktop version, it's decent: https://opencode.ai/download