How does your quantized Qwen3 compares in code quality to Opus?

Not the person you’re responding to, but my experience with models up through Qwen3-coder-next is that they’re not even close.

They can do a lot of simple tasks in common frameworks well. Doing anything beyond basic work will just burn tokens for hours while you review and reject code.

It's just as fast, but not nearly as clever. I can push the context size to 120k locally, but quality of the work it delivers starts to falter above say 40k. Generally you have to feed it more bite-sized pieces, and keep one chat to one topic. It's definitely a step down from SOTA.