最倒霉的人：API零调用，被Anthropic偷偷扣费1亿元

marsbitPublished on 2026-07-13Last updated on 2026-07-13

Abstract

韩国开发者remy_notes近日曝光了Anthropic向其发送的两张天价“幽灵账单”，金额分别高达166.9万美元和1662万美元，而其账户为免费计划且API用量为零。其银行卡片因限额拦截了扣款。审计公司Vaudit的调查揭示，AI服务计费错误并非个例，在多企业审计中发现了约170万美元的错误收费，问题涉及错误路由模型、对未完成请求计费及重试风暴等。Anthropic虽回应称多收费非普遍问题，但在争议下已与多家云厂商退还部分款项。此前，Anthropic还曾因“HERMES.md bug”计费漏洞和订阅计划用量承诺不透明引发用户诉讼和信任危机。随着Fable 5模型定价变动等事件，AI服务计费复杂度与不透明问题日益凸显。行业竞争正从模型能力延伸至计费透明度，清晰的账单正成为赢得用户信任的关键。

7 月 8 日,韩国知名开发者 remy_notes 在 Threads 上晒出两张 Anthropic 发票截图:第一张 166.9 万美元(约 1130 万元人民币),第二张 1662 万美元(约 1.1 亿元人民币)。两张发票间隔不到 24 小时,金额翻了近 10 倍。

他最初以为是钓鱼邮件,但发件地址和支付链接都指向 Anthropic 的官方 Stripe 域名。

他的 KB 国民银行借记卡在同一天拦截了两笔来自美国商户「ANTHROP」的海外扣款请求——因单笔限额不足被拒绝。

他的账户是免费计划,没有绑定信用卡,后台显示 API 用量为零。

截至发稿,Anthropic 未公开解释这笔「幽灵账单」的成因。

不止一张「幽灵账单」

1660 万美元的数字足够耸动,但真正值得关注的是它背后浮现的系统性问题。

AI 账单审计公司 Vaudit 在 3 月至 6 月间审查了 60 家企业共 3400 万美元的 AI 账单,发现约 170 万美元的错误多收,其中大部分与 Anthropic 的 Claude Code 相关。

Vaudit 的客户包括松下、HP 和本田等。

Vaudit CEO Michael Hahn

Vaudit CEO Michael Hahn 向 The Information 描述了几种常见的多收模式:

客户使用旧的、更便宜的模型,但被按更贵的新模型计费;

AI Agent 或聊天机器人未完成请求甚至返回错误信息,仍然产生费用;

Agent 在任务失败后反复重试(retry storm),每次重试都被计价。

Anthropic 发言人对此回应称,公司不对未完成的请求或错误信息收费,不会将用户请求路由到旧模型,「多收费似乎不是一个普遍问题」。

但在 Vaudit 和客户的申诉下,亚马逊、谷歌、微软、Anthropic 和 OpenAI 退还了约 80% 的争议金额。

Hahn 说这些公司在处理账单纠纷时「非常配合」。

一个值得注意的细节是:Vaudit 审计的部分客户并非直接从 Anthropic 购买服务,而是通过 AWS、Google Cloud 或 Microsoft Azure 等云平台中转。

账单经过多一层传递后,责任归属变得更模糊。

AI 账单为什么越来越难看懂

开发者社区对 Anthropic 计费的不信任并非一夜之间积累起来的。

今年 4 月,开发者发现了一个被称为「HERMES.md bug」的计费漏洞:当代码提交记录中包含特定字符串时,Anthropic 的后台会将原本应从 Max 计划额度中扣除的请求,静默路由到价格更高的「额外用量」计费通道。

用户付了 200 美元/月的订阅费,实际被按 API 费率另行扣款。

Anthropic 将其定性为「身份验证路由问题」,但最初拒绝退款,引发大量开发者发起信用卡退单(chargeback)。

6 月 14 日,华盛顿特区用户 Karl Kahn 在加州北区联邦地区法院提起集体诉讼,指控 Anthropic 对 Max 5x(100 美元/月)和 Max 20x(200 美元/月)订阅计划的用量承诺存在误导。

Kahn 称他在使用 Max 20x 计划时,一个 5 小时的编程会话就消耗了周额度的 15%。

诉讼认为,Anthropic 的用量计算方式不透明,用户几乎无法验证自己是否得到了承诺的服务。

Fable 5 的定价变动进一步放大了这种不信任。

这款 Anthropic 有史以来最强的公开模型在 6 月 9 日发布时被纳入订阅计划,但仅 13 天后就被剥离,转为按 API 费率(每百万输入 token 10 美元、输出 50 美元)的用量积分计费——是 Opus 4.8 价格的两倍。

拓展阅读:突发!Anthropic全球停用Claude 5

期间还因美国政府出口管制被全球下线 19 天。

7 月 1 日恢复后,Anthropic 给出的免费窗口只有 6 天,后又延长至 7 月 12 日。

当「安全」不覆盖钱包

Anthropic 以「AI 安全」为核心品牌叙事。

但对付费用户来说,安全的定义正在扩展:它不仅指模型不会输出有害内容,也应该包括你不会在毫不知情的情况下被扣掉一笔无法解释的费用。

这不只是 Anthropic 一家的问题。

AI 服务的计费结构天然复杂——模型层级、token 用量、API 调用次数、重试、云平台加价、直购和转售的不同路径——叠加在一起,形成了一个普通用户几乎无法独立验证的黑箱。

Vaudit 这类审计公司的出现本身就是信号:AI 账单已复杂到需要专业第三方才能看懂。

竞争对手已经嗅到机会。

微软在 6 月 Build 大会上发布 MAI-Thinking-1,AI 负责人 Mustafa Suleyman 对彭博社说,「很多人正在紧急寻找 Anthropic 昂贵模型的替代品」。

OpenAI 据报正在考虑大幅降低 Token 价格。

DeepSeek V4 的输出 Token 价格约为 Sonnet 4.6 的 1/90,开始被开发者纳入成本对比的选项。

过去一年,AI 公司靠模型能力赢得用户。

下一阶段的竞争,计费透明度会成为产品体验的一部分。

当用户开始用审计工具核查你的账单、用集体诉讼质疑你的定价承诺时,「我们的模型更聪明」已经不够了。

Anthropic 今天面对的问题,整个行业都会遇到——谁先把账单做明白,谁就拿到下一轮信任的入场券。

参考资料:

https://www.internationalcyberdigest.com/anthropic-tried-to-phantom-charge-16-6m/

https://www.theinformation.com/newsletters/applied-ai/anthropic-customers-find-errant-charges-auditing-startup-says

本文来自微信公众号“新智元”,作者:ASI启示录

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Related Questions

Q文章中提到的韩国开发者遭遇了什么具体问题？

A韩国开发者 remy_notes 收到了来自 Anthropic 的两张巨额发票，第一张约1130万人民币，第二张约1.1亿人民币，且其后台显示API用量为零，账户是免费计划且未绑定信用卡，但银行记录显示有对应的扣款尝试。

QVaudit公司在审计AI账单时发现了哪些常见的错误多收模式？

AVaudit 发现常见的多收模式包括：1. 用户使用旧的便宜模型却被按新的更贵模型计费；2. AI Agent未完成请求或返回错误信息仍然被收费；3. Agent在任务失败后反复重试（重试风暴），每次重试都被计价。

Q文章中提到了哪些关于Anthropic计费不透明和用户不信任的事件？

A文章提到了几个事件：1. 今年4月的“HERMES.md bug”计费漏洞，用户订阅费被静默按更高API费率扣款。2. 6月华盛顿特区用户Karl Kahn提起集体诉讼，指控Anthropic对Max订阅计划的用量承诺存在误导且计算方式不透明。3. Fable 5模型在发布后迅速被从订阅计划中剥离，转为更昂贵的API计费，加剧了用户的不信任。

Q为什么AI服务的账单变得越来越难以理解和验证？

AAI服务账单难以理解的原因是计费结构高度复杂，涉及因素众多：不同的模型层级、token用量、API调用次数、失败重试、云平台加价以及直购或转售等不同购买路径。这些因素叠加在一起，形成了一个普通用户几乎无法独立验证的“黑箱”。

Q面对AI计费问题，市场竞争出现了哪些新动向？

A市场竞争出现以下动向：1. 微软等竞争对手发布新产品，瞄准寻找Anthropic昂贵模型替代品的用户。2. OpenAI据报考虑大幅降低Token价格。3. 如DeepSeek V4等模型以极低价格成为成本对比选项。4. 计费透明度和用户体验成为竞争新焦点，出现了Vaudit这样的专业账单审计公司，预示着下一阶段竞争将包含对计费信任的争夺。

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