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AI inference cost drops 47% per quarter, faster than any tech in history
1 report1 sourceupdated 6 days ago
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Summary
Epoch AI 一份报告算了笔账：过去三年，达到同一个性能水平的 AI 推理成本，平均每个季度下降 47%，折合每年降 13 倍。举个例子，OpenAI 的 o3 在 2025 年 1 月答一道 GPQA Diamond 题要花 0.3 美元，到 2026 年年中，GPT-5.6 Luna 拿到差不多的分数只要 0.0004 美元，18 个月降了约 ...
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Sep 23
- Hacker News front pagePickAI inference cost drops 47% per quarter, faster than any tech in history
An Epoch AI report finds that the inference cost for a given AI performance level has fallen 47% per quarter over three years—a 13x annual drop. OpenAI o3 cost $0.30 per GPQA Diamond question in Jan 2025; GPT-5.6 Luna hit the same score for $0.0004 by mid-2026, a ~725x decline in 18 months. Tabarrok argues frontier models are getting both smarter and cheaper to run, which partly offsets the open-model threat. The post doesn't show open-model cost curves, so take that claim with a grain of salt.