Yuhang Yao(@yuhang_yao):🚀 MERA: Model Evolution and Routing with Skill Adaptation for Agentic Systems at Scale What if small models could improve themselves, not just be routed around? MERA evolves both small-model skills and weights, guided by stronger models. Student failures become verified teacher demonstrations, reusable SkillBook procedures, and LoRA updates. 🔥 Results: Qwen2.5-Coder-1.5B: 28.7% → 49.7% direct pass on coding tasks Qwen3.5-2B on TAU-2: 14/35 (40.0%) → 18/35 (51.4%) The adapted 2B model matches an unadapted 4B model Small models don’t just get routed around. They get better. 📄 Paper: https://t.co/VnNxImMU5U 💻 Code:

2026.08.12 01:59

🚀 MERA: Model Evolution and Routing with Skill Adaptation for Agentic Systems at Scale What if small models could improve themselves, not just be routed around? MERA evolves both small-model skills and weights, guided by stronger models. Student failures become verified teacher demonstrations, reusable SkillBook procedures, and LoRA updates. 🔥 Results: Qwen2.5-Coder-1.5B: 28.7% → 49.7% direct pass on coding tasks Qwen3.5-2B on TAU-2: 14/35 (40.0%) → 18/35 (51.4%) The adapted 2B model matches an unadapted 4B model Small models don’t just get routed around. They get better. 📄 Paper: 💻 Code:

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