When Faster is Worse: Evaluating Trade-offs in AI Agent Latency vs. Quality
NoMusician464 · reddit · 2026-08-13
This AI engineering practice discussion highlights a common pitfall: by shortening context, removing verification, and parallelizing tools, an agent's P95 latency dropped from 11s to 3s. However, this led to more unsupported answers, human escalations, and higher costs per task.
The author explores how to properly evaluate agent systems beyond latency:
- Key metrics to review alongside speed (e.g., answer quality, task success rate)
- Setting acceptable trade-off thresholds between speed and accuracy
- Strategies for pre-release testing and post-release monitoring
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