YC Paper Club: Same Model Jumps from 30% to 95% on ARC-AGI with Better Harness

YC's Paper Club argued harness research is real science: the same model weights scored 30% on ARC-AGI but reached 95% with a better harness, challenging the view that harnesses are just prompt engineering.

2026-09-07 ~ 2026-09-07 · 4 related posts

• YC Paper Club: Same Model Weights Score 30% on ARC-AGI but 95% With a Better Harness — Y Combinator · 2026-09-07
• YC Teases Live Stream of Harnesses Deep Dive: 30% to 95% on ARC-AGI — ycombinator · 2026-09-07
• Same Weights, 30% to 95% on ARC-AGI: YC's Deep Dive Into Why Harnesses Are Real Research — ycombinator · 2026-09-07

1 near-duplicate retellings: ycombinator