We built a source-available LLM reliability library (free for research / personal / internal eval) that can cut inference cost by half at matched quality, and you adopt it by changing one import [P] [R]

In three linesAgentcodec unifies 28 LLM reliability techniques (retries, ensembling, verification, adaptive routing) under a single API. Adoption via one-line import change. On Nemotron + Devstral + GLM-5.1, adaptive router achieves 56% cost reduction at matched quality, or 7% quality gain at matched cost. Single λ parameter controls the trade-off.

Summary generated by Claude — human-verified