langchain

2 posts

Feb 18, 2026

From 6.7% to 68.3% Task Success: The Harness Made the 10x Difference, Not the Model

What LangChain's Terminal Bench results and the hashline format experiment revealed. The same model flipped leaderboard rankings, and the reasons came down to three things: prompts, tools, and middleware.

Feb 8, 2026

Manus Acquired by Meta for $300M Reveals Core Agent Development Principles with LangChain

Manus shared the hard-won lessons behind building production AI agents - from context rot to evaluation rethinking - in a joint presentation with LangChain.