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A new paper proposes VDAR-Router, a difficulty-aware retrieval-based routing framework for LLMs that adaptively selects models based on query difficulty, achieving better cost-performance trade-offs.
AgentCo-op is a retrieval-based synthesis framework for composing interoperable multi-agent workflows from reusable skills, tools, and external agents. It uses typed artifact handoffs and bounded self-guided local repair, achieving strong results on benchmarks and enabling collaborative discovery in open-world genomics tasks.