Qwenputer: A functioning, deterministic RISC-V CPU inside Qwen3.5

221 points - today at 12:25 AM

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tiborsaas today at 1:45 AM
This is fun and games, but wait until an agents finds this and does the most misaligned thing with it in order to fold paper clips.

> Because a CPU inside a language model clearly wasn't cursed enough, I decided the prudent thing would be to give it a filesystem too.

Love the spirit :)

jerrythegerbil today at 2:17 AM
There was an interesting bit of research that qwen has a single neuron that makes it “demonic evil qwen” and a simple “Who are you?” will get some absolutely terrifyingly vile results.

Anyways, what I’m trying to say is I want evil qwen to be my CPU.

giveexamples today at 2:56 AM
https://www.percepta.ai/blog/can-llms-be-computers

They implemented wasm in transformer with cpu decoding for the wasm part.

jazzyjackson today at 1:31 AM
> When Qwen 'saves' a file, the compiled layers hash its name into one of 1,024 slots in a directory kept in the DeltaNet state, and store the text itself in other heads, with eight tokens per row, chained together

I’ve never wanted to learn how LLMs work more than reading this. Fascinating.

Does divagr get paid to do wild things with LLMs? Just curious if they’re being compensated for these wild experiments

traverseda today at 1:26 AM
I'd be very interested in how a scratch trained model that started training with this neural circuitry would behave. Especially the storage space.
andai today at 2:40 AM
> Now, here's where our fun experiment starts. I found out that by setting the gate to 1,1 the write strength (beta) to 1,2 and using one-hot key encoding,3 every write we perform will overwrite exactly one row, and every one-hot query can retrieve an exact value. This means that the GDN layers themselves can work exactly as RAM, at a far lower cost than using normal attention as RAM, since a GDN head's state stays the same size however long the conversation gets, unlike attention's KV cache.

So like... can't you use a computer as a computer without doing all that roundabout stuff? Like if you want to integrate a LLM with hard computation there's probably a more efficient way to do that.

Or is this building towards "but can it run DOOM?" :)

mkturkcan today at 2:45 AM
Nice project and write up! I’ve done similar work with a custom tiny network I call Loom at https://arxiv.org/abs/2604.08816 ; you need far fewer layers, and you can run Doom, very slowly: https://mehmetkeremturkcan.com/Loom/demos/
Ericson2314 today at 3:43 AM
The real question is, do current training methods allow one to learn this when training on enough, say, assembly, or can the weights only be achieved via hard-coding?

A fun and important thought experiment about the the space of nerual networks vs the image of current training methods.

Most discourse conflates neural networks and trainable neural networks.

bronlund today at 2:05 AM
No, I don’t want you to use the computer, I want you to be the whole computer. No mistakes.
blurbleblurble today at 2:56 AM
This is cool but it'd be way more useful if they had made a GPU, seeing as how expensive those have gotten
yaoke259 today at 2:20 AM
It could be interesting to experiment with more complex representations in the memory/file system, i.e. vectors. Seems like the full advantage of this architecture is yet to be explored. Blending neurons with deterministic compute to fit on one GPU is a fascination concept, never considered it before!
lacoolj today at 3:26 AM
I 100% see the potential here and am dying to see it in 30 days

Or maybe ill join your discord and hopefully we can riff it out to get there faster

jonrouach today at 3:00 AM
i wonder if you could implement "authenticated token authorship" and self-verified running with this. the model verifies an input as signed by an authorized requester, and signs its own outputs. eventually it also authenticates its own running via e.g. snarks? :) there's lots of meta available with these toys..
farhanhubble today at 1:19 AM
This is cool and I understand the RAM emulation with gated attention but how does the CPU emulation wor? You add layers that are then trained to predict outputs while interpreting RISC instructions?
zardo today at 2:22 AM
How much VRAM do I need to run DOOM?
voxelghost today at 2:23 AM
Makes me want to run agents on it
dools today at 2:38 AM
Have you any idea how it feels to be a Qwenputer living in a Qwenbot's Qwenputer's world?
rumwerfer today at 2:29 AM
But can it run Doom?
0x20cowboy today at 4:01 AM
This is very clever. An inversion of tools. Awesome.
deleted today at 2:17 AM
seba_dos1 today at 2:07 AM
Now run LLM inference on it.
favori995749721 today at 3:08 AM
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hujun236 today at 2:42 AM
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cinderwick today at 1:46 AM
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rickcarlino today at 1:45 AM
If anyone else has an easier way to emulate RISC-V I’d like to hear it. /S
gigel82 today at 1:27 AM
But... why? </s>

This reminds me of C++ Template Metaprogramming (TMP) (it's Turing-complete so people wrote "games" that run at compile time). The same with TypeScript types, I think someone got DOOM running entirely in the TypeScript type system. An interesting tech demo but entirely superfluous.

ansk today at 2:45 AM
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rvz today at 1:31 AM
So this is yet another rube goldberg machine.

We have gone down this path already in [0] and this is the same thing but overly complicated. This reason is "because LLMs".

Why?

[0] https://arxiv.org/abs/1410.5401

ram_rattle today at 1:22 AM
Cool cool cool