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官方來源· OpenAI· 發布於 2026年10月7日
OpenAI DevDay 2026 影片聚焦 AI 成本：從每項任務成本到快取與批次 API
OpenAI 於 2026 年 10 月 7 日發布 DevDay 2026 場次「Stop Overpaying for Intelligence」，介紹如何衡量每項已完成任務的成本、選擇模型與推理力度，並探討提示快取、Programmatic Tool Calling 和 Batch API。
完整報導
OpenAI 於 10 月 7 日發布 DevDay 2026 場次「Stop Overpaying for Intelligence」。影片介紹如何在維持品質的同時降低 AI 成本，涵蓋以每項已完成任務的成本作為衡量方式，以及如何選擇模型與推理力度。
場次列出的成本管理方法包括提示快取、Programmatic Tool Calling 與 Batch API。這些主題將成本問題連結到模型選擇、工具使用與請求處理方式；影片簡介未列出具體節省幅度或個別方案的適用條件。
這場討論延續 OpenAI 近期對提示快取的說明。該公司 9 月 22 日公布 GPT-6 提示快取改進，提及合資格共享前綴可在 30 分鐘內重用，並稱快取輸入 token 折扣最高可達 90%。
為什麼值得注意
以「每項已完成任務」衡量成本，有助開發者把支出與任務是否完成一併考量，而不只看單次 API 呼叫或 token 用量。這場影片同時把模型選擇、推理力度和三種成本管理方法列為評估面向；實際效果仍取決於各自的工作流程。
來源證據
先看主要證據，再查看佐證來源與來源脈絡。
主要證據
1Stop Overpaying for Intelligence | DevDay 2026
OpenAI
“Cut AI costs while preserving quality. Learn to measure cost per completed task, choose models and reasoning effort, and use prompt caching, Programmatic Tool Calling, and the Batch API.”
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