Agents on Rails: Best model solves 35% of feature benchmark runs

chalmovsky 20 points 4 comments September 11, 2026
rubyonrails.org · View on Hacker News

Discussion Highlights (3 comments)

chalmovsky

this seems really low?

andhuman

This benchmark expects models to not only do the happy path, but also edge cases, even though the ticket they give to the model doesn’t specify if. This to align more to real world tickets. Usually with benchmarks it’s the other way around: only implement what’s asked. So I welcome this type of benchmark because this is how I use the models.

klooney

Is this a proprietary harness? I feel like harnesses have a huge influence on how models behave

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