Perplexity Comet勝訴:法院首准AI代理購物亞馬遜 | Perplexity Comet Wins: Court Allows AI Agents on Amazon
By Kit 小克 | AI Tool Observer | 2026-08-05
🇹🇼 Perplexity Comet勝訴:法院首准AI代理購物亞馬遜
Perplexity Comet這款AI代理購物工具,在2026年8月4日迎來關鍵勝利:美國第九巡迴上訴法院推翻了亞馬遜先前取得的禁令,讓Comet重新可以代替使用者在亞馬遜網站購物。這是聯邦上訴法院首度針對「AI代理能否合法存取線上平台」做出正式判決,牽動整個AI代理購物產業的法律走向。
Perplexity Comet是什麼?為什麼被亞馬遜告?
Comet是Perplexity推出的AI瀏覽器代理,能自動幫使用者瀏覽網頁、比價、下單購物。2025年底亞馬遜對Perplexity提告,主張Comet未經授權存取使用者的密碼保護帳戶,違反美國《電腦詐欺與濫用法》(CFAA),2026年3月地方法院核准初步禁令,暫時禁止Comet代購亞馬遜商品。
第九巡迴法院怎麼判?
上訴法院認定禁令核發不當:真正「存取」亞馬遜電腦系統的是使用者本人,Perplexity的AI代理只是使用者授權操作的工具,不能被視為獨立的存取主體。這個定性直接決定CFAA罪名是否成立,也等於為AI代理的法律定位立下第一個上訴案例先例。
這代表AI代理購物完全合法了嗎?
不完全是。這次判決只推翻了CFAA相關的禁令,亞馬遜是否能用服務條款(ToS)違約等其他理由繼續告Perplexity,案件仍可能回到地方法院審理。誠實說,這是一場程序性勝利,不是「AI代理可以無限制存取任何網站」的全面背書。
對開發者與一般用戶有什麼影響?
- AI代理購物的合法性爭議正式進入司法審查,未來預期會有更多類似訴訟出現
- 平台方(亞馬遜、Shopify等)可能轉向技術阻擋,而非單靠法律手段防堵AI代理
- 開發AI代理產品的團隊要注意:法院判決不等於平台歡迎,帳號被封鎖的風險依然存在
對一般使用者來說,短期內Comet應該能恢復在亞馬遜上代購的功能,但亞馬遜大機率會用其他方式繼續反制。這場官司只是進入下一回合,AI代理購物的法律灰色地帶還沒真正釐清。
好不好用,試了才知道。
🇺🇸 Perplexity Comet Wins: Court Allows AI Agents on Amazon
Perplexity's Comet, an AI shopping agent, just won a major legal battle. On August 4, 2026, the Ninth Circuit Court of Appeals overturned Amazon's injunction against Comet, clearing the way for the tool to resume shopping on Amazon.com on users' behalf. It's the first federal appeals ruling to address whether an AI agent can legally access an online platform — a question with huge implications for the fast-growing agentic commerce space.
What Is Perplexity Comet, and Why Did Amazon Sue?
Comet is Perplexity's AI browser agent that autonomously browses, compares prices, and checks out on behalf of users. Amazon sued Perplexity in late 2025, alleging Comet accessed password-protected customer accounts without authorization, violating the Computer Fraud and Abuse Act (CFAA). A district court granted Amazon a preliminary injunction in March 2026, blocking Comet from shopping on Amazon.
How Did the Ninth Circuit Rule?
The appeals court found the injunction was improper because the user — not Perplexity — is the one "accessing" Amazon's computers, with the AI agent acting merely as an authorized tool. That framing is critical: it shifts legal responsibility for platform access onto the human operator, not the AI agent company, and sets the first appellate precedent for how courts view agentic AI tools.
Does This Mean AI Agent Shopping Is Now Fully Legal?
Not quite. The ruling only knocked out the CFAA-based injunction — Amazon can still pursue other claims like breach of contract over Comet's alleged Terms of Service violations, and the case likely returns to the district court. This is a procedural win, not a blanket green light for AI agents to access any site freely.
What This Means for Developers and Users
- The legality of AI agent shopping is now formally under judicial review — expect more lawsuits testing similar boundaries
- Platforms like Amazon and Shopify may lean harder on technical blocking rather than legal action alone
- Teams building agentic AI products should note: a court win doesn't mean a platform welcome mat — account bans remain a real risk
For everyday users, Comet should resume Amazon shopping functionality soon, but Amazon will likely keep fighting back through other means. This is just round two — the legal gray zone around AI agent shopping is far from settled.
好不好用,試了才知道。 (You won't know until you try it.)
Sources / 資料來源
- Bloomberg Law: Perplexity Overturns Amazon Ban on AI Shopping Bot on Appeal
- GeekWire: Judge Blocks Perplexity's AI Bot From Shopping on Amazon in Early Test of Agentic Commerce
- Engadget: Perplexity Has Successfully Overturned Amazon's Injunction on Its AI Shopping Bot
常見問題 FAQ
Perplexity Comet現在可以在亞馬遜購物嗎?
可以,第九巡迴法院已推翻禁令,Comet暫時恢復在亞馬遜的購物功能,但案件尚未終局,亞馬遜仍可能透過其他訴因繼續興訟。
這項判決適用其他AI代理工具嗎?
這是聯邦上訴法院首宗相關判例,具參考價值,但每個平台的技術限制與服務條款不同,其他AI代理工具仍可能面臨個案訴訟。
亞馬遜還能繼續告Perplexity嗎?
可以,法院只駁回了CFAA相關的禁令部分,亞馬遜若以違反服務條款等其他理由起訴,案件可能回到地方法院繼續審理。
什麼是CFAA?和AI代理有什麼關係?
CFAA是美國《電腦詐欺與濫用法》,原本用來規範駭客未經授權存取電腦系統,這次判決首度釐清AI代理協助使用者操作時,法律上「存取」的主體是使用者而非AI公司。
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