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ClawLoop: self-improving agents without an external teacher model

Research
ClawLoop (LongCat) trains sandbox LLM agents through a self-sustaining three-phase cycle — task synthesis, SFT/RL training, rollout diagnosis — where the diagnosis feeds the next task synthesis, removing the external model that normally synthesizes tasks and trajectories. With Qwen3.6-27B it improves on SkillsBench, Claw-Eval-Live and ClawGym-Bench; the refined tasks transfer with gains even to Qwen3.5-4B and 9B.

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