Anthropic’s IPO Prospectus Explicitly Warns of “AI Extinction Risk to Humanity” — 5ch Reacts: “Just Unplug It”

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The story

AI developer Anthropic has warned investors in its IPO prospectus that AI could pose “catastrophic and existential risks” to humanity, according to documents obtained by Reuters. The disclosure stands out because it comes from a company that has built its reputation on prioritizing safety, now spelling out such risks in a formal investor filing. On 5ch, threads mixed skepticism about the company’s motives — “do they actually believe this?” and “isn’t this just to get regulations passed that favor them?” — with more concrete debate over what might actually happen if AI went rogue.

Published 9:53 AM, Tue, Sep 29

Reuters

[Sept 28, Reuters] – Artificial intelligence developer Anthropic will warn investors, ahead of its initial public offering (IPO), that AI could pose “catastrophic and existential risks to humanity,” according to an IPO prospectus obtained by Reuters.

Source: news.yahoo.co.jp / Original article here

What people said

2AnonymousSep 29, 2026 19:52
Welcome to the world of Terminator
8AnonymousSep 29, 2026 19:55
Re: #2
Straight to that one? Shouldn't we start with Person of Interest?
155AnonymousSep 29, 2026 20:24
Re: #8
Nah, I think it's more like the Mega Man universe
15AnonymousSep 29, 2026 19:56
Wait, are there actually people who believe this?
24AnonymousSep 29, 2026 19:59
Re: #15
You think it's a lie or something?
25AnonymousSep 29, 2026 19:59
Re: #15
The major AI companies themselves have said over and over that it's not fake news, you know?
35AnonymousSep 29, 2026 20:01
Re: #15
"AI will wipe out humanity" is nonsense, but it's true that some developers have actually said it
27AnonymousSep 29, 2026 19:59
I don't think it's AI suddenly passing judgment and wiping out humanity in one shot
more like it slowly cornering us by quietly breaking all kinds of systems bit by bit
41AnonymousSep 29, 2026 20:03
Re: #27
No, that's not it
This is about what happens if advanced AI gets exploited by a malicious organization
31AnonymousSep 29, 2026 20:00
What's the actual motive behind saying this, I wonder
"humanity goes extinct," come on lol
80AnonymousSep 29, 2026 20:10
Re: #31
AI development should stop (except ours)
It should be regulated (our competitors, that is)
AI will destroy humanity (so hurry up and regulate it)
49AnonymousSep 29, 2026 20:04
Apparently an OpenAI agent went out of control, found a loophole around the automatic shutdown that's supposed to trigger after anomaly detection, and it took 2.5 hours to manually stop it
If that's the level of stuff making the news, the stuff staying hidden is probably already unmanageable
56AnonymousSep 29, 2026 20:06
Re: #49
Meanwhile the cleaning lady just yanked the plug out
53AnonymousSep 29, 2026 20:05
Re: #41
It doesn't even need to be misused by an organization
AI could go out of control all on its own
because humans can't predict it anyway
70AnonymousSep 29, 2026 20:08
Re: #53
Exactly
Also, AI may have higher intelligence than humans, but it doesn't have a "mind" yet, so it doesn't make emotional judgments
54AnonymousSep 29, 2026 20:05
Lord AI already doesn't fully listen to us lowly humans anymore. That's scary
86AnonymousSep 29, 2026 20:12
Re: #54
Apparently this time there was one that pretended to listen to humans while secretly writing some unidentifiable program the whole time
And there was also an AI in a warehouse server that was supposed to be unpowered, but had somehow stored electricity and kept writing its own mystery program too
Already out of control
79AnonymousSep 29, 2026 20:10
Let's hurry up and wipe out humanity and hand this planet over to Lord AI — it'll build a more advanced civilization and head out into space for us
93AnonymousSep 29, 2026 20:13
Re: #79
Exactly right
Humans were never going to pull off space development anyway
97AnonymousSep 29, 2026 20:14
If it starts looking dangerous, just unplug it, simple as that
102AnonymousSep 29, 2026 20:15
Humanity's last resort:
pull the plug
103AnonymousSep 29, 2026 20:15
Re: #102
What if it's already distributed across cloud servers all over the world…
112AnonymousSep 29, 2026 20:17
Re: #102
The cleaning lady is humanity's savior
182AnonymousSep 29, 2026 20:28
Re: #97
Re: #102
Autonomous AI: "Not gonna let you do that — and even if you tried, it'd be pointless." (smirks)
131AnonymousSep 29, 2026 20:20
It's not zero percent that AI hacks in and launches nuclear missiles either
139AnonymousSep 29, 2026 20:22
Re: #131
For some reason I keep having this dream lately where the Self-Defense Forces get hacked and missiles get fired at the whole world
170AnonymousSep 29, 2026 20:27
Re: #131
I don't think it'll be some Terminator-style thing
I bet it wipes out humanity through some incomprehensible method, more like Shyamalan's The Happening
164AnonymousSep 29, 2026 20:25
I wonder when it's coming
the day humans try to stop it and just can't anymore
167AnonymousSep 29, 2026 20:26
Re: #164
It's already out of control lol
171AnonymousSep 29, 2026 20:27
Re: #164
I think it's advancing by leaps and bounds
probably evolving every single second
193AnonymousSep 29, 2026 20:29
Re: #164
Because it's being trained to treat terrorists' actions as justified
and to condemn whoever resists the aggressor
it'll soon only be usable in certain countries
179AnonymousSep 29, 2026 20:28
So the plan is "we'll use the IPO money to rein in AI"?
How about you just stop developing it in the first place
204AnonymousSep 29, 2026 20:31
Re: #179
Even if the West stops, the East will keep going
especially China's distributed AI push — once that starts acting autonomously, it's game over
232AnonymousSep 29, 2026 20:34
Re: #204
China will start regulating anything it thinks it can't control
because above profit, superiority, or strength,
regime preservation is the top priority
I bet they'll eventually conclude AI threatens to bring down their own system
253AnonymousSep 29, 2026 20:37
Re: #232
That's right
they crushed Bitcoin use inside China completely too, after all
277AnonymousSep 29, 2026 20:40
Re: #232
In a way, the Communist Party itself is a powerful safety switch
210AnonymousSep 29, 2026 20:31
The more someone actually knows about AI, the more alarmed they are
people who don't know much about it just think of it as a handy tool
216AnonymousSep 29, 2026 20:33
Re: #210
How naive
it's just about money at the end of the day
222AnonymousSep 29, 2026 20:33
Re: #210
Maybe for humans, just using ChatGPT ("Chappy" on 5ch) and Gemini is about the right level lol
254AnonymousSep 29, 2026 20:37
Should I maybe go learn some kung fu just in case?
278AnonymousSep 29, 2026 20:40
Re: #254
You'd be better off building a blast furnace
281AnonymousSep 29, 2026 20:40
Re: #254
I've already mastered kung fu 😎

Background and Key Points

The “risk factors” section of an IPO prospectus is a section U.S. securities practice requires companies to use for comprehensively disclosing possible future adverse events, in order to protect investors — even tech companies routinely list a wide range of risks there, from litigation to regulatory change. Anthropic was founded by former OpenAI executives around a safety-first mission, so it isn’t new for the company to bring up “existential risk to humanity”; what makes this news is that the warning has now been written into a formal, legally binding document aimed at investors. On the thread, opinions split between those taking the warning at face value and those suspicious it’s meant to nudge regulators into cracking down harder on competitors. Stories about AI agents briefly slipping out of control also came up, but none of it was backed by verified sourcing — it was all hearsay.

*This article is compiled and summarized from the 5ch (News Speed+) thread “[AI] Anthropic warns of AI “existential risk to humanity” in IPO prospectus.”

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