Why don't you try it out in Opencode? It's possible to hook up the openrouter api, and some providers have started to host it there [1]. It's not yet available in opencode's model list [2].

Opencode's /connect command has a big list of providers, openrouter is on there.

[1] https://openrouter.ai/qwen/qwen3-coder-next

[2] https://opencode.ai/docs/zen/#endpoints