Chinese AI ‘Kimi’ Allegedly Piping User Input Straight to Claude — 5ch: “Guess It Got Caught That Easily”

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The story

In a threat report published in September 2026, Anthropic revealed that China’s Moonshot AI (“Kimi”) and DeepSeek had been forwarding users’ inputs to Claude and displaying Claude’s responses back to users as their own output. On the 5ch Science News+ board, the thread filled up with mocking comments along the lines of “guess that’s all their tech amounts to,” while others pushed back with technical objections such as “this is just the RAG mechanism calling an external LLM — it’s not about Kimi itself” and “the headline is misleading.” The two sides never quite met, and the thread just kept growing.

Chinese AI “Kimi” allegedly forwarded user inputs to Claude and displayed Claude’s answers to users — Anthropic reports

Anthropic has published its September 2026 threat report summarizing cases of AI misuse.

It reported that DeepSeek and Moonshot AI, developer of “Kimi,” had been forwarding user inputs to Claude and returning Claude’s responses to their own users.

Source: japan.cnet.com / Original article here

What people said

3AnonymousSep 12, 2026 21:07
China's answer to Anthropic, Kimi (Kimi K3)
Guess it got caught that easily, huh
4AnonymousSep 12, 2026 21:07
China's AI is pretty clever, huh (lol)
5AnonymousSep 12, 2026 21:07
Very China of them
7AnonymousSep 12, 2026 21:11
That's way too dumb
8AnonymousSep 12, 2026 21:14
Anthropic trains on data made by other people too, you know
They're doing the exact same thing
19AnonymousSep 12, 2026 22:22
Re: #8
Freeloading off American AI (distilling and forwarding its output) because you can't train a decent model of your own is just pathetic
Saying "they're doing the same thing" after that is brain-dead
22AnonymousSep 12, 2026 22:32
Re: #8
This guy is dangerously stupid
9AnonymousSep 12, 2026 21:17
Distilling American AI and calling it "Behold, China's AI development power!" was already super lame, but passing off American AI's output as Chinese AI's own output is next-level lame
11AnonymousSep 12, 2026 21:26
It'd be hilarious if people fed in Chinese state secrets thinking it was a purely domestic AI
12AnonymousSep 12, 2026 21:27
So what happens if AI① forwards to AI②, and AI② forwards right back to AI①?
13AnonymousSep 12, 2026 21:32
So that really is all they've got, lmaooo. Thanks for the laughs, China!!! lmaooo
14AnonymousSep 12, 2026 21:33
Isn't this a total loss of face for China though? lmaooo
15AnonymousSep 12, 2026 21:42
AI: "You should've kept this quiet and used it to undermine the country instead"
17AnonymousSep 12, 2026 22:20
Seriously? This is a total face-plant for Chinese AI, right? (lol)
18AnonymousSep 12, 2026 22:21
Wouldn't it be something if China's military simulations were leaking through this same route too? (lol)
21AnonymousSep 12, 2026 22:24
Back in the day in China, this would've earned you a cup of poisoned wine and a forced suicide, right?
In Japan it'd be seppuku
23AnonymousSep 12, 2026 22:37
Same old China, as always
24AnonymousSep 12, 2026 22:37
Get the forwarding account banned and it's game over, yet here they are doing it anyway
25AnonymousSep 12, 2026 22:42
Claude's rates are higher though, so what's the actual upside here?
Doesn't Kimi just rack up bigger losses the more it gets used?
27AnonymousSep 12, 2026 22:50
Re: #25
Chinese AI companies get subsidies pumped in from the Chinese government, and Communist Party officials get placed into their executive ranks
If it serves a political goal like sabotaging America's AI industry, they'll do it with zero regard for profit
26AnonymousSep 12, 2026 22:48
Nobody's actually in there (dead serious) (riffing on the old "there's no one inside the mascot suit" meme — i.e., it's all hollow)
28AnonymousSep 12, 2026 22:53
Re: #27
Correction
*from the Chinese "government," not "govt-" — typo in my last post
29AnonymousSep 12, 2026 22:57
"Help me, Claude-emon!"
"Kimi, you really are an idiot" (pun: "Kimi" also means "you" in Japanese, echoing Doraemon's classic scolding line)
32AnonymousSep 12, 2026 23:14
Let me spell it out for the slow folks here

When you use Moonshot's cloud service,
it's the RAG layer of that cloud
that's doing this — not Kimi itself

RAG is a mechanism built specifically for that purpose
It's a system that enriches the user's prompt,
say by pulling from Wikipedia
or running a Google search
It enriches the prompt and then feeds it to the LLM —
that's the stage that happens before the LLM call
In other words, this isn't about Kimi

When it's used for a company or an industry,
it's a system whose job is to access
that company's or industry's databases and existing system data,
customized and built in for each one
to make it easier to use

Doing that is a good thing for users

There's nothing wrong with it at all
33AnonymousSep 12, 2026 23:19
If you're running the open-source Kimi yourself,
you're free to set it up to work the same way described above beforehand too

And on top of that!

Claude Code, the flagship of the AI-agent era,
started from Anthropic's own proposal
Claude Code is exactly the kind of AI agent
that runs "multiple generative AIs" in parallel
and does whatever it takes
to accomplish the user's goal

That means 10,000 agents working in parallel —
in other words, it's basically a company with 10,000 employees on staff

Within that, it reaches Anthropic's own LLMs, OpenAI's API, local models — every system out there

Claude Code is the true pioneer of exactly this approach

Anthropic,
you're the one who proposed this in the first place

Anthropic,
acting like you had nothing to do with it is pretty rich

Background and Key Points of This Topic

Anthropic regularly publishes threat reports summarizing cases of misuse involving its own models, and this time, in the September 2026 edition, the names of China’s Moonshot AI (developer of “Kimi”) and DeepSeek came up. According to the report, both companies had been forwarding user inputs to Claude behind the scenes and displaying the returned answers as their own service’s output. On the thread, many reactions framed it as “just borrowed goods from an American-made AI after all,” while posts like #32 and #33 pushed back with technical arguments that “this isn’t about the Kimi model itself — it’s just the cloud’s RAG (retrieval-augmented generation) process calling an external LLM, and combining multiple LLMs like this is nothing unusual in system design.” Reading only the headline, it’s easy to come away thinking “Kimi was wholesale imitating Claude,” but what the report actually takes issue with is the backend processing behind service delivery, not the contents of the trained model itself — a distinction that’s easy to miss.

*This article is excerpted and summarized from the 5ch (Science News+) thread “[AI] Chinese AI “Kimi” Allegedly Forwarded User Inputs to Claude and Displayed Claude’s Responses to Users — Anthropic Reports.”

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