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.
