If I work 1000 hours and you work 2000 hours in the same timeframe, but you outcompeted me and created 3x value, you are 1.5 times more productive.
There's a numerator too.
How does the same exact person get more productive? You forgot the example I replied to? The only thing that changed were hours worked. In your example you change it to less hours worked with more output. You made it circular.
You can be more productive just because you're faster.
Magistral is amazingly impressive compared to ChatGPT 3.5. If it had come out two years ago we'd be saying Mistral is the clear leader. But it came out now.
Not saying they worked fewer hours, just that speed matters, and in some cases, up to a limit, working more hours gets your work done faster.