Qwen3.5 is confusing a lot of newcomers because it is very confident in the answers it gives. It can also regurgitate solutions to common test requests like “make a flappy bird clone” which misleads users into thinking it’s genetically smart.
Using the Qwen3.5 models for longer tasks and inspecting the output is a little more disappointing. They’re cool for something I can run locally but I don’t agree with all of the claims about being Sonnet-level quality (including previous Sonnet versions) in my experience with the larger models. The 9B model is not going to be close to Sonnet in any way.
Here's how I got the 35B model to work: https://gist.github.com/danthedaniel/c1542c65469fb1caafabe13...
The 35B model is still pretty slow on my machine but it's cool to see it working.
Also seemed to ignore fairly simple instructions in CLAUDE.md about building and running tests.
It qwen3-coder is better for code generation and editing, strong at multi-file agentic tasks, and is purpose-built for coding workflows.
In contrast, qwen3.5 is more capable at general reasoning, better at planning and architecture decisions, good balance of coding and thinking.