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SemiAnalysis: Anthropic A/B tests Claude subscription quotas, some users get 20% higher limits but lower value

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Research firm SemiAnalysis reported that Anthropic is A/B testing Claude subscription quotas, giving some accounts on the same plan a 20% higher five-hour usage limit. However, when converted to API prices, these accounts' monthly resource value is about 20% lower. The report follows widespread user complaints about shrinking Claude quotas, and SemiAnalysis suggests quota settings can vary even for identical plans.

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  1. 机器之心机器之心

    编辑|Neo、山辉 你敢信,花一样的钱订阅 Claude,你拿到的额度却可能比别人少了 20%。 根据研究机构 SemiAnalysis 的最新披露, Anthropic 正在对 Claude 订阅额度进行 A/B 测试,部分相同套餐的用户,被分配了不同的额度设置。 测试中,部分账号的五小时使用额度被提高了 20%。 听上去似乎是好事,但 SemiAnalysis 发现, 这部分账号按 API 价格折算,月度可用资源的价值反而降低了约 20% 。 怎么回事,难道真的「鱼越多鱼越少」? Claude 额度越来越不够用了? 最近,很多用户反映,Claude 的额度越来越不够用。 在 Reddit 的 ClaudeCode 社区,一位用户抱怨,自己原本可以用上四五天、甚至一周的额度,如今仅仅 24 小时就快要耗尽。 还有用户表示, 刚刚重置的额度,只进行几次高强度操作,就已经消耗了相当大一部分。 X 用户也有类似的遭遇,有人认为过去几周 Anthropic 一直在削减额度,甚至大胆预言了「500 美元」的新套餐。 实际上,Anthropic 近期确实频繁地调整 Claude 的额度,调整结果有增有减。 今年 5 月至 9 月,Anthropic 曾开展限时活动,将 Claude Code 的每周使用额度提高 50%。 但从 9 月 14 日起,这项活动结束,新的标准额度虽有提高,但换算下来,用户实际拿到的比活动期间减少了约 17%。 紧接着,9 月 22 日,Anthropic 发布 Claude Opus 5.5,又宣布提高 Pro、Max、Team 等套餐的 5 小时使用额度。按照 SemiAnalysis 当时的实测,使用 Opus 5.5 时,Max 套餐可用 token 数量增加约 20%,Pro 套餐则增加约 50%。 由于模型和推理强度不同,不同时期的相同订阅额度在使用体验上大不相同。同时,5 小时额度和每周额度也并不遵循同一套限制规则。这些都可能导致用户对额度的使用体验忽高忽低。 而 SemiAnalysis 最近披露的测试,则揭示了除上述因素之外的可能性: 即便购买相同套餐,不同账号的额度设置也可能存在差异。 Claude 的使用额度,究竟是怎么测出来的? 用户感受到额度缩水,但 Claude 的使用上限究竟是多少,又是如何变化的? 从进度条反推出真实的

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