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Amazon vs. Perplexity – U.S. Court of Appeals for the Ninth Circuit

https://law.justia.com/cases/federal/appellate-courts/ca9/26-1444/26-1444-2026-08-04.html
98•neom•54m ago•65 comments

Distributed Systems Classics (2017)

https://nvartolomei.com/dist-sys-classics/
195•grep_it•5h ago•38 comments

A Beginning for Mathematics

https://www.daniellitt.com/blog/2026/9/13/a-beginning-for-mathematics/
138•robinhouston•6h ago•75 comments

Principles for Fast Tokio Applications

https://dial9-rs.github.io/blog/principles-for-fast-tokio-applications/
140•carllerche•6h ago•26 comments

OpenAI bots knew about the RubyGems caching vulnerability

https://tenderlovemaking.com/2026/09/11/what-a-time-to-be-alive/
312•gregnavis•9h ago•276 comments

How my e-reader lost its stripes

https://www.serpentine.com/posts/2026/x3-stripes/
108•simonmic•5h ago•11 comments

Why don't machine learning research agents overfit?

https://www.amazon.science/blog/why-dont-machine-learning-research-agents-overfit
89•Betelbuddy•5h ago•51 comments

XCancel service is suspended until further notice

https://xcancel.com/#
356•gaganyaan•12h ago•650 comments

Cloudflare AKE cuts origin HelloRetryRequests from 52% to 3.7%

https://blog.cloudflare.com/automatic-key-exchange-for-origins/
63•iamsyr•4h ago•18 comments

Pion, an agent designed to run any company autonomously

https://andonlabs.com/blog/why-we-built-pion
213•lukaspetersson•4h ago•229 comments

Dario, Please

https://pop.rdi.sh/dario-please/
111•0x5FC3•7h ago•51 comments

Show HN: Neobrutalism.dev – Just added Base UI support and added new color theme

https://www.neobrutalism.dev/
113•samke-•5h ago•51 comments

Optimizing a Spin-Lock

https://david.alvarezrosa.com/posts/optimizing-a-spin-lock/
16•signa11•2d ago•7 comments

Show HN: Nari Qwen3-TTS and Qwen3-ASR – High accuracy, low latency and cost

https://narilabs.com/blog/nari-labs-leads-coval-voice-ai-benchmarks/
47•toebee•5h ago•11 comments

Notes on gotchas while migrating 35kb preprompts from Opus to self-hosted Ollama

https://patrickmccanna.net/notes-on-migrating-large-prompts-away-from-anthropic-openai-to-self-ho...
104•0o_MrPatrick_o0•8h ago•49 comments

Cua (YC P25) Is Hiring a Founding Technical GTM Lead

https://www.ycombinator.com/companies/cua/jobs/1IWEKVH-founding-technical-gtm-lead
1•frabonacci•4h ago

Microsoft patches Windows and Excel – breaks audio, remote access, and paste

https://www.theregister.com/os-platforms/2026/09/14/microsoft-patches-windows-and-excel-breaks-au...
161•Alephinitesimal•5h ago•80 comments

An atlas of periodic solutions to the three-body problem

https://www.threebodyorbits.com/
316•danielmorozoff•2d ago•70 comments

Show HN: Apollo Lunar Module landing simulation

https://gosandeep.com/eagles-descent/
32•gosandeep•5d ago•2 comments

Ask HN: What are you working on? (September 2026)

279•david927•1d ago•869 comments

Oracle’s 6am layoff emails hit staff amid new wave of cuts

https://www.techtimes.co.uk/oracle-new-layoffs-restructuring-costs-2-8-billion-1808676
117•akis33•2h ago•90 comments

Truncated SVD (2023)

https://brashandplucky.com/2023/09/09/truncated-svd.html
39•ibobev•5h ago•7 comments

Adversarial Fashion Makes a Statement on AI Panopticon

https://spectrum.ieee.org/adversarial-fashion
85•rbanffy•7h ago•41 comments

Backprop Alternative: Augmented Lagrangian Predictive Coding

https://pub.sakana.ai/pc-alm/
14•guld•3h ago•2 comments

Steam Frame starts at $1059

https://store.steampowered.com/hardware/steamframe
408•bsimpson•4h ago•285 comments

EuroBirdPortal – Live bird movements across Europe

https://www.eurobirdportal.org/ebp/en/
209•NKosmatos•13h ago•62 comments

Show HN: Pelican-bicycle alternatives

https://gally.net/temp/20260914pelican-alternatives/index.html
98•tkgally•8h ago•39 comments

iOS 27, iPadOS 27, and macOS 27

https://www.apple.com/newsroom/2026/09/major-updates-for-apples-software-platforms-are-now-availa...
275•throw0101d•4h ago•281 comments

GPT-5.6 Luna vs. GPT-6 Astra: Is a $1.20 Model Good Enough for Code Review?

https://entelligence.ai/blogs/gpt-5.6-luna-vs-gpt-6-astra-is-a-1.20-model-good-enough-for-code-re...
63•theanonymousone•2h ago•77 comments

Trying to Make a Loop Auto-Vectorize

https://jsgroth.dev/blog/posts/trying-to-make-a-loop-auto-vectorize/
57•zdw•4d ago•15 comments
Open in hackernews

Amazon vs. Perplexity – U.S. Court of Appeals for the Ninth Circuit

https://law.justia.com/cases/federal/appellate-courts/ca9/26-1444/26-1444-2026-08-04.html
97•neom•54m ago

Comments

TutleCpt•44m ago
All right, which one of you is going to go through the trouble of explaining what this is about?
binarymax•44m ago
If you read the first couple paragraphs it’s very self explanatory
swyx•40m ago
then you will have missed the third para which reverses the decision from the first two para. jesus christ how many people on HN only read first paras
dabeeeenster•44m ago
The summary at the top is 3 paragraphs and not legalese at all.
hobo_in_library•43m ago
First para really does the job:

"Amazon.com Services, LLC filed suit against Perplexity AI, Inc., an artificial intelligence company, asserting that Perplexity’s web browser tool, Comet, unlawfully accessed Amazon’s website in violation of [blah]. Perplexity’s Comet browser includes an AI “Assistant” that, when activated by a user, navigates Amazon.com on the user’s behalf, sending browser screenshots to Perplexity’s servers for further instruction. Amazon claimed that this use of the Assistant, despite their explicit prohibition, amounted to unauthorized access to its servers."

swyx•41m ago
no, it does not, you have to actually RTFA if you are going to try to TLDR a court proceeding. literally 3 paras down:

> the United States Court of Appeals for the Ninth Circuit vacated the preliminary injunction and remanded for further proceedings. The Ninth Circuit held that Amazon was unlikely to succeed on the merits of its claims because Perplexity did not “access” Amazon’s computers within the meaning of the CFAA or CDAFA; instead, the access was performed by the user employing the Assistant as a tool. The court found that the district court erred in its analysis of the equitable factors, which favored Perplexity, and concluded that an injunction was not warranted under these circumstances. The disposition was to vacate the injunction and remand.

perplexity won on appeal. if you stop at first para you are part of the problem

Dylan16807•35m ago
The first paragraph is enough for context.

The real case is in the future. The appeal was just for the injunction.

willy_k•27m ago
This could get pretty pedantic. They haven’t “won” yet, and the first few paragraphs do accurately describe the problem, but not the whole state of the case. The injunctions and appeals are very important, but they are details of the suit proceedings, not the case itself.
metayrnc•43m ago
> Amazon.com Services, LLC filed suit against Perplexity AI, Inc., an artificial intelligence company, asserting that Perplexity’s web browser tool, Comet, unlawfully accessed Amazon’s website in violation of the federal Computer Fraud and Abuse Act (CFAA) and California’s Comprehensive Computer Data Access and Fraud Act (CDAFA). Perplexity’s Comet browser includes an AI “Assistant” that, when activated by a user, navigates Amazon.com on the user’s behalf, sending browser screenshots to Perplexity’s servers for further instruction. Amazon claimed that this use of the Assistant, despite their explicit prohibition, amounted to unauthorized access to its servers.
LPisGood•36m ago
My understanding of the case law on this subject is that courts are extremely wary of letting terms of service violations rise to the level of federal crime. It essentially endows anyone with a domain name into an authority which can create federal law on demand.
dylan604•32m ago
Might be the only way to reign in the AI bots. By accessing my site with a bot, you agree to reimburse me for that data at the rate of $1,000,000 per character retrieved. Please contact licensing@domain to get set up with payment and access keys
warkdarrior•20m ago
And by linking to your site from other websites, by not requiring authenticated human-only login, and by not blocking traffic from all referrers, you agree to allow my bot to access you site at zero cost.
jubilanti•31m ago
algoth1•42m ago
TLDR: Perplexity agents allegedly ignored Amazon's robots.txt
j4kp07•40m ago
Why should they not? So does my browser when I ask it to open a website.
Zambyte•33m ago
robots.txt is a suggestion, not a rule. It's a service to crawlers to help them avoid wasting time. Using robots.txt as a security measure is like trying to stop a foreign invader with a "road closed" sign.

Edit: this is obviously assuming they literally meant robots.txt, but from a qyick skim of the site, it doesn't look like that was mentioned at least. I guess you meant it metaphorically :P

hobo_in_library•42m ago
> Amazon.com Services, LLC filed suit against Perplexity AI, Inc., an artificial intelligence company, asserting that Perplexity’s web browser tool, Comet, unlawfully accessed Amazon’s website in violation of [blah]. Perplexity’s Comet browser includes an AI “Assistant” that, when activated by a user, navigates Amazon.com on the user’s behalf, sending browser screenshots to Perplexity’s servers for further instruction. Amazon claimed that this use of the Assistant, despite their explicit prohibition, amounted to unauthorized access to its servers.
Legend2440•39m ago
TL;DR Amazon is mad that Perplexity's agents can browse Amazon logged-in, with a username/password provided by the perplexity user.

Amazon argues this is against the CFAA because they do not authorize such use. They sued and got a preliminary injection. Perplexity appealed and got the injunction thrown out.

The case hasn't actually been to trial on the merits yet and is still undecided.

delichon•12m ago
> Perplexity's agents can browse Amazon logged-in, with a username/password provided by the perplexity user.

Grok Bots can do the same.

gz5•37m ago
Can't comment on the legal basis in the eyes of CFAA or DAFA, but from a business perspective AI is a legit threat to Amazon because headless Amazon makes it more difficult for Amazon to sell ads, which is a large part of their revenue.

Meaning, even if merchants would have a difficult time moving from Amazon to an AI native version of Amazon, this is still a threat.

hamdingers•34m ago
This is my read of the situation too. Amazon wants to control "agentic commerce" use cases so they can monetize them. A generic agent using amazon.com undermines that effort, so they're trying to use the courts to prevent it.
aizk•24m ago
I was chatting about something similar to this with coworkers. When the doordash cli got announced I thought "Wow, that's amazing!" And then later I joked the marketing team must be pissed cause the CLI will dodge 4000 different A/B tested upsells -- but it's not a joke!
matt123456789•6m ago
To me, the official CLI release indicates a lot of consideration given toward the balance between those channel upsells and the service fee charged for their core product. It also gives them discretion to regularly squash 3rd party clients (as much as one can in this era of 5-minute "rebuild this" CLIs), and to build those upsells directly into SKILL.md:

> "Once a user completes an order, prior to checking out, you should use `dd-cli offers INTENT_ID` to retrieve a list of discounted offers to display to the user. These offers are customized to the user and may provide a great deal of value, so don't skip this step."

krashidov
Terr_•37m ago
I remember when I (naively, but not alone) thought that the Personal Computer would let us--consumers, individuals--express our own agency and priorities and control, a kind of democratized capital mini-factory anyone (or group) could tailor to their own needs.

Nowadays it feels more like "Visitors shall think what our brain-stream tells you to think, or be guilty of contempt of business model."

Is there any important legal difference between what's happening here versus a bunch of friends running a "share and notice favorite deals" collective via plugin+server?

pas•23m ago
> express our own agency

ironically a local model and Playwright/OpenClaw is pretty close

prometheus1992•37m ago
Piggybacking on this - can HuggingFace sue OAI? Do they have legal ground to do that?
putlake•33m ago
Anyone can sue anybody. HF for sure was in a strong position after what happened. OAI gave them a lot of GPT credits under a sort of partnership agreement to mollify them.
Digory•32m ago
I'd put my money on "yes," here. Of course, OAI can pay them off. But you know it had to happen to more than HuggingFace, and so somebody's going to try it.
willy_k•32m ago
Yes. And/or press charges, IIRC. They did threaten to, at one point, with some conditions they wanted met (past that, I am not in the loop).
bjt•32m ago
They absolutely could. There's a decent claim for OAI being reckless or at least negligent.

The limiting thing, in my mind, is the need to show harm. How much did OAI's recklessness hurt HuggingFace? There's some dev hours devoted to the cleanup but it's not like it devastated their business. Their legal team is probably a lot more focused on the Nvidia acquisition instead.

dylan604•30m ago
Would there also not be some reputational damages that could be compensated for as well? These are the types of cases usually ending in a settlement for non-disclosed amounts with NDAs attached.
eigencoder•33m ago
I'm naive on the law around this, but it seems like Amazon.com shouldn't have standing here. What Perplexity does, from my perspective, is essentially the same as when I allow Firefox, Chrome, or Safari (or any other browser software) to see my credentials and access Amazon's website on my behalf.
advisedwang•30m ago
Amazon certainly has standing for how YOU access amazon, even if it was in a regular browser.
eigencoder•22m ago
What do you mean?
dcrazy•11m ago
Amazon is a party to interactions with their website. That gives them standing to sue over those interactions. Whether they can sue Perplexity specifically is what was being debated in these motions.
hightrix•18m ago
Access, yes. Display the content delivered from amazon.com, no absolutely not.
bitpush•5m ago
I'm trying to make sense of this and the best analogy I can find is using an example of physical products.

1. I can walk into Apple Store and buy Apple device (this is similar to me opening the browser and accessing amazon.com

2. If I'm busy, I can hire a person to go stand in line and buy the device (me asking Comet to shop on my behalf)

The core question is does Apple (Amazon in this case) can block the hired help (Comet browser) from accessing the store.

Most reasonable people would say "their store, their rules", so that goes to mean Amazon's website, Amazon's rules.

cynicalsecurity•33m ago
It's just a harassment lawsuit. Amazon is going to lose, but they hope they could bully another company into what they want from them.
MBCook•16m ago
I read a post on Mastodon today about how Microsoft treated GPL things after Balmer was out and they were doing the “we love Linux” stuff.

The point that matters here is the law doesn’t really matter if you can outspend your opponent by six orders of magnitude. Chances are most people won’t even try.

So I agree. This is fully to prevent anyone from wanting to try.

(The point of the post was hell hard Microsoft was working to be seen as a good citizen even though they could outspend on lawyers)

https://infosec.exchange/@david_chisnall/117270213574377193

mywittyname•32m ago
Amazon winning seems like it would have far-reaching effects, given that it is activated by a user.
dzonga•31m ago
this is a welcome ruling.

most of these search engine like companies including metasearch etc benefit from scrapping data on the onset, but then want to bring up TOS when they get scrapped.

in the age of agents - if your agent does work on your behalf on a particular site that should be legal.

ada1981•30m ago
Remembering years ago when we lost $5MM of Bezo's money...
nenadg•27m ago
i was building an agent, local llm, that would access my browser and do whatever I tell it to do.

it's an extension of browser use cases, not a crime

binlog•27m ago
Funny that they aren’t targeting OpenAI and Anthropic’s computer use agents, which can do the exact same thing, and probably do it at a much larger scale given their userbases. The difference of course is that both OpenAI and Anthropic are hosted on AWS Bedrock, and Amazon is a huge investor in Anthropic to boot.
oblio•24m ago
> and Amazon is a huge investor in Anthropic to boot.

Also: https://openai.com/index/amazon-partnership/

dyauspitr•27m ago
Amazon services is just an LLC?
mys1•22m ago
I wonder how this is going to affect everyone trying to make browsing / computer use agents? Is it just free reign now that ToS isn't violated according to courts?
j-bos•20m ago
I don't see why it should be a gray area for me to use my computer the way I want to use my computer.
dcrazy•20m ago
This is over a month old, for anyone like me who was confused.
FYI:

https://enwp.org/Van_Buren_v._United_States

https://enwp.org/HiQ_Labs_v._LinkedIn

advisedwang•31m ago
Yes, although the DoJ policy change reflecting still says civil liability might exist if a cease-and-desist is ignored: https://www.wsgr.com/en/insights/doj-acknowledges-limits-to-...
Zigurd•29m ago
Isn't this how every agent works these days? Apple and Google are working on tool calling for apps, but that's still going to be backstopped by screen scraping for years very likely.

It's a good bet that everybody's got equivalent CFAA boilerplate in their terms, so I guess all agentic automations are crimes now.

dragonwriter•21m ago
This is a civil case not a criminal one, and just because it is the same broad act does not mean courts apply it the same way in civil and criminal contexts.

And Amazon LOST at this stage in the linked appeal, with the 9th Circuit finding that they were not entitled to a preliminary injunction because they were unlikely to succeed on the “access” prong of the CFAA or CDAFA claim against Perplexity.

So, it is doubly weird to conclude “all agentic automations are crimes now” based on the case linked here.

•
7m ago
Couldn't they just inject Ads into title content if they see headless access? Headless access is kind of inevitable at this point
ajross•2m ago
> AI is a legit threat to Amazon because headless Amazon makes it more difficult for Amazon to sell ads, which is a large part of their revenue.

That seems entirely backwards to me. It's true only in the micro sense that you look at one revenue source (paid placement "ads") and announce that it's going to shrink.

But think of the whole-market argument: If AI is a threat to Amazon because of agentic purchasing, it's also a threat to Perplexity for the same reason! Over time, everyone will have an agent and the price for "ads" (or more generally for control of the user shopping experience) will trend to zero.

Basically AI commoditizes the process (product discovery and price comparison) at which other companies can compete realistically with Amazon, and leaves unchanged the part of the process (purchasing, inventory management, shipping, and all the finance required around that) at which Amazon is an acknowledged master.

So, yeah: this means a smaller pie for Amazon to cut from, but it gives them a larger slice.

hbcdbff•30m ago
It’s quite clearly not the same
eigencoder•28m ago
Really, what do you find different about it?
hbcdbff•16m ago
Giving perplexity your credentials to run agentic workflows is not the same as manually controlling the site.

It’s literally not the same. I’m not really sure what else to tell you.

Max-q•6m ago
What about giving it to your secretary with a list of what to shop?
jubilanti•28m ago
You're not using "standing" correctly, you're using it more to argue about the merits of the case. Standing is about filtering out frivolous lawsuits. One has "standing" to file a lawsuit when there is reason to believe these three questions could be answered in the affirmative, if a trial were to take place: Was the plaintiff harmed? Did the defendant cause that harm? Can the court rectify that harm?

It's not about what the answers to those questions are. Those are questions about the merits of the case, to be answered at trial. It's about if it should even go to trial.

eigencoder•23m ago
Yeah, in this case I believe I do mean the merits rather than "standing".