>>108543964
gemma4 31B is significantly faster at generating output, and has higher quality analysis skills when debugging compared to Qwen3.5 27B.
gemma4 also has made more trivial syntax errors emitting similar-complexity code (e.g. impl<'t, de::OwnedDeserializer> Deserialize<'de> for Foo<'t>
).
I wouldn't let either of them off the leash, though. The code quality is fairly low overall.