How do you measure whether it works better day to day without benchmarks?
That's still benchmarking of course, but not utilizing any of the well known / public ones.
To think that Anthropic is not being intentional and quantitative in their model building, because they care less for the saturated benchmaxxing, is to miss the forest for the trees
They can give a description of what their metrics are without giving away anything proprietary.
Nathan is at Ai2 which is all about open sourcing the process, experience, and learnings along the way