April has been a crazy month for open weights models. I've been using Claude Code for work and Kimi 2.6 for personal projects and Kimi has been very good. Glm-5.1 is also great. Qwen, Mimo and Deepseek I need to test some more, but they all have been producing good results. I have the impression that they are all are at the same level, or close to, Sonnet 4.6.
I've been using qwen 3.6 with oMLX on my M1 Mac Studio and it's been awesome. Took a while to get things set up, figure out which of the hundreds of models would be a good fit for my use case, and then get it strapped into opencode's harness, but it works! Its slower than a hosted model, obviously, but I'm tickled pink that I can give it a relatively complex chore, like I would've with my a Claude Pro subscription, and it'll churn away on it with good results and no god damn arbitrary usage limits.