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How to Build a Model Router in the Harness

LangChainConfirmed

Why How to Build a Model Router in the Harness matters

Teams deploying LLM-based coding agents can significantly reduce inference costs through smart model routing, making agentic coding workflows more economically viable at scale while maintaining output quality.

Summary

Open SWE built a model router into their coding task harness that reduces median cost per task by 64% while maintaining quality, using intelligent routing across multiple LLMs. The post details their implementation approach and provides guidance for others to build similar cost-optimization routers.

Read the full article at LangChain

CoFabrix summarises and comments on this story. The original reporting belongs to LangChain.

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