PaperAgent

Aug 11, 2026 · Artificial Intelligence

Long-Horizon Tasks Jump 98%: Introducing Stanford’s Skill‑Native LLM

Researchers introduce Skill‑Entropy, a metric quantifying the difficulty of switching between reasoning skills in long‑horizon tasks, build the 558‑skill Skill²‑Bench, and show that Skill‑Entropy‑RL training dramatically improves cross‑skill performance of LLMs such as Qwen3, closing the gap observed in standard benchmarks.