Single-turn benchmarks looked great — then I ran an actual agent loop and everything broke

Born-Woodpecker-4530 · reddit · 2026-09-24

A Redditor tuned their setup against benchmarks and felt good — until they plugged in a real agent loop: prompts ballooned every turn, the GPU idled between tool calls, and the benchmark number predicted nothing. The post highlights why single-turn evals fail to capture multi-turn context growth, latency and cost, and asks what surprised others making the same jump.

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