Building a model router for coding agents with LangSmith cuts costs 60%+
js_craft_hq · x · 2026-11-03
In a practical talk, Sydney Runkle shows how to build a routing mechanism for a coding agent using LangSmith observability, dynamically selecting models per task and cutting costs by 60%+. Key point: routing decisions depend on observability data — without it you can't tell which requests can go to a cheaper model.
More from coding & agent
- asc CLI fixes team-cache write races and hardens Apple web sessions — rudrank · 2026-11-03
- asc CLI aligns field flag validation with Apple's actual spec — rudrank · 2026-11-03
- asc CLI adds flags that save trips to App Store Connect website — rudrank · 2026-11-03
- asc CLI adds full Asset Library placements querying and filtering — rudrank · 2026-11-03
- asc CLI sets video poster frames at upload time via --time-code — rudrank · 2026-11-03
- asc CLI enables preview uploads for product page optimization tests — rudrank · 2026-11-03