There's a model on Huggingface where someone takes Qwen and makes it think Opus style, and that one seems to be decent, not sure if they have the 27B variant in that style. I do wonder if you can tweak your system prompt to force Qwen to behave better?

You read the OP backwards, they said Sonnet is a downgrade from Qwen, and prefer Qwen's tone

Sure, but my argument still holds, the idea is that Qwen reasons the way that Opus on High (what is now Max or whatever?) level thinking to reason about problems instead of its standard approach.

Yes, Qwopus :) I've been pleasantly surprised by its quality

Seen that one too, same guy I'm thinking of too, havent had a chance to try all of their models. For anyone curious I believe the username is Jackrong on huggingface? They've got several models out on there each focused on programming from different approaches.