Pi [1] is amazing. Since using it I've felt no need to switch harnesses anymore.

Or choose Oh My PI [2] for batteries included

[1] https://github.com/earendil-works/pi [2] https://github.com/can1357/oh-my-pi

I highly recommend just getting out of Anthropic's (or anyone's) vendor lock-in. Use opencode or pi. You can still use your subscription pricing using a proxy. I switched to opencode and haven't looked back.

Antigravity is probably the best of the bunch I've tried. I'd say it's pretty comparable to Claude Code (I use both daily).

Antigravity has been also rapidly improving lately, and your can also use any of the open coding harnesses. But I mostly meant “harness” as in your workflow/loop setup.