LangChain Labs engineer shares a year of building harnesses, post-training, and benchmarks
BraceSproul · x · 2026-11-14
A LangChain Labs team member marks the company's Series C with a one-year retrospective: building harnesses, reading millions of tokens of traces, hill climbing and post-training, designing benchmarks. He argues autonomous agents will soon produce more data than humans ever have, and the challenge is continually improving intelligence humans understand and guide at scale.
More from Companies & People
- Long Lake has unmatched talent density, predicted to spawn unicorn founders in 5-10 years — varunshenoy_ · 2026-11-14
- Replit employee automated her sales job with AI, moved on to building GTM tools — amasad · 2026-11-14
- Mystery trader nets nearly $200M shorting Nvidia weeks before Jensen Huang's resignation — Polymarket · 2026-11-14
- Polymarket gives 49% odds Jensen Huang testifies before Congress after shock Nvidia exit — Polymarket · 2026-11-14
- Peter Diamandis goes live to discuss Jensen's departure — PeterDiamandis · 2026-11-14
- Founders weigh moving to SF as AI talent density stays 'off the charts', investor says — aarthir · 2026-11-14