OpenAI：2025年智能体构建实用指南报告（英文版）

Different models have different strengths and tradeoffs related to task complexity, latency, and cost. As we’ll see in the next section on Orchestration, you might want to consider using a variety 
 of models for different tasks in the workflow. Not every task requires the smartest model—a simple retrieval or intent classification task may be handled by a smaller, faster model, while harder tasks like deciding whether to approve a refund may benefit from a more capable model. An approach t