I haven't found Kimi to be all that good, but GLM 5.1 I find to be better than Opus 4.6 most of the time in web dev. Opus' only advantage is it's a bit faster. If you can't access GLM 5.1 (not fully released yet) try 5.0. It was better than Opus sometimes too.

I have a GLM Code subscription and it lasts much longer than Claude Code.

I use Pi agent so I use all agents in the same harness.