Topic

Companion blog, How to Build a Model Router in the Harness

All digests tagged Companion blog, How to Build a Model Router in the Harness

Suggested route

Topic journey

Move from earlier context through the available material to the newest signals. This route is a reading aid, not a difficulty ranking.

Start here

How to Build a Model Router in the Harness Oct 6, 2026 · 13:39 Sydney Runkle details how to build a model router in the harness to reduce operational costs. By analyzing task traces and selecting models along the Pareto frontier, the router cut median cost per thread by 64%.

LangChain

How to Build a Model Router in the Harness

Sydney Runkle details how to build a model router in the harness to reduce operational costs. By analyzing task traces and selecting models along the Pareto frontier, the router cut median cost per thread by 64%.

Read article