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The week's top AI papers say the harness, not the model, is the variable
DAIR.AI's ten-paper roundup shows scaffolding, not the model, drives the gains: Prime Intellect's Prime Agent lifts ARC-AGI-3 Best@1 from 30% to 95.5%, while a compaction bug quietly erases 90% of safety rules after five rounds.
newsTen papers, one theme: the agent harness moves into the training stack
DAIR.AI's weekly roundup of ten papers finds agent harnesses moving into the training stack: Microsoft's Agent Lightning lifts Qwen3.5-9B on SWE-bench Verified from 41.8% to 56.4% using just 6K training examples and a 3,500-line proxy.
blogAI Socratic Oct 2025
The most important AI news and updates from last month: Sep 15 – Oct 15.