You can launch GLM-5.2 in Opencode using Nemesis8: https://github.com/DeepBlueDynamics/nemesis8#nemesis-8

After installing, do a `n8 build` to build the image, then `n8 --danger --provider opencode interactive` to launch it in a container.

Signup for GLM-5.2 here: https://z.ai

One can also try https://neuralwatt.com using it in opencode.

I think they give $5 trail credits to test with any of the open weight models.