"The smoking gun" is right there in the text ;) (but also things like "Same million floats. Same threshold. Same function."). Don't know if other models have that same specific style, but it looks very 'claude-y'.
I wouldn't be surprised though if (especially) non-native speakers unconsciously start adopting the Claude writing style when they stare all day long at Claude generated text at work.
I wouldn't be surprised though if (especially) non-native speakers unconsciously start adopting the Claude writing style when they stare all day long at Claude generated text at work.