Live data from Hacker News

A 30B Qwen model walks into a Raspberry Pi and runs in real time

byteshape.com

41–50 of 139 posts

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#41

I feel like calling it a “30B” model is slightly disingenuous. It’s a 30B-A3B. So only 3B parameters is active at a given time. While still impressive nevertheless, being able to get 8T/s for a “A3B” compared to a dense 30B is very different.

What does it mean that only 3B parameters are active at a time? Also any indication of whether this was purely CPU or if it’s using the Pi’s GPU?

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#42
LLMs are, by definition, real time at any speed. 50,000 tokens per second? Real time. Only 0.0002 tokens per minute? Still real time.

Eight tokens per second is "real time" in that sense, but that's also the kind of speeds that we used to mock old video games for, when they would show "computers" but the text would slowly get printed to a screen letter for letter or word for word.

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#43
post #6

There is a huge market segment waiting here. At least I think there is. Well, at least people like me want this. Ok, tens of dollars can be made at least. It is just missing a critical tipping point. Basically, I want an alexa like device for the home backed by local inference and storage with some standardized components identified: - the interactive devices - all the alexa/google/apple devices out there are this in…

I've been working on this on and off for a couple of years now, the loop is definitely closing, I think it's possible at this point but not yet easy.

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#45
post #34
post #20

Is there a good place for easy comparisons of different models? I know gpt-oss-20b and gpt-oss-120b have different numbers of parameters, but don't know what this means in practice. All my experience with AI has been with larger models like Gemini and GPT. I'm interested in running models on my own hardware but don't know how small I can go and still get useful output both for simple things like fixing spelling and g…

One easy way to test different models is purchase $20 worth of tokens from one of the Open Router-like sites. This will let you asks tons of questions and try out lots of models. Realistically, the biggest models you can run at a reasonable price right now are quantized versions of things like the Qwen3 30B A3B family. A 4-bit quantized version fits in roughly 15GB of RAM. This will run very nicely on something like…

> (If you have a bunch of money and patience, you can also run something like GPT OSS 120B or GLM 4.5 Air locally.)

Don't need patience for these, just money. A single RTX 6000 Pro runs those great and super fast.

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#46

I feel like calling it a “30B” model is slightly disingenuous. It’s a 30B-A3B. So only 3B parameters is active at a given time. While still impressive nevertheless, being able to get 8T/s for a “A3B” compared to a dense 30B is very different.

What does it mean that only 3B parameters are active at a time? Also any indication of whether this was purely CPU or if it’s using the Pi’s GPU?

> What does it mean that only 3B parameters are active at a time?

In a nutshell: LLMs generate tokens one at a time. "only 3B parameters active a a time" means that for each of those tokens only 3B parameters need to be fetched from memory, instead of all of them (30B).

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#47

I feel like calling it a “30B” model is slightly disingenuous. It’s a 30B-A3B. So only 3B parameters is active at a given time. While still impressive nevertheless, being able to get 8T/s for a “A3B” compared to a dense 30B is very different.

Out of curiosity, I just tried Qwen3-30B-A3B-Instruct-2507-Q3_K_S-2.70bpw.gguf (the version they recommend for the Raspberry Pi) on a Blackwell GPU. It cranked out 200+ tokens per second on some private benchmark queries, and it is surprisingly sharp.

It punches well above the weight class expected from 3B active parameters. You could build the bear in Spielberg's "AI" with this thing, if not the kid.

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#48

LLMs are, by definition, real time at any speed. 50,000 tokens per second? Real time. Only 0.0002 tokens per minute? Still real time. Eight tokens per second is "real time" in that sense, but that's also the kind of speeds that we used to mock old video games for, when they would show "computers" but the text would slowly get printed to a screen letter for letter or word for word.

In this context by "real time" people usually mean "as fast as I can read the reply", so, 0.0002 tokens per minute would not be considered "real time".

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#49
post #5

Is there something different about that accuracy measure? i.e. relative to perplexity term usually used Going from BF16 to 2.8 and losing only ~5% sounds odd to me.

It's accuracy across GSM8K, MMLU, IFEVAL and LiveCodeBench.

They detail their methodology here: https://byteshape.com/blogs/Qwen3-4B-I-2507/

Re: A 30B Qwen model walks into a Raspberry Pi and runs in real time

#50
post #39

So basically the quantization in a byteshape model is per-tensor and can be variable and is an "average" in the final result? The results look good - curious why this isn't more prevalent! Would also love to better understand what factors into "accuracy" since there might be some nuance there depending on the measure.

> Would also love to better understand what factors into "accuracy" since there might be some nuance there depending on the measure.

It's accuracy across GSM8K, MMLU, IFEVAL and LiveCodeBench.

They detail their methodology here: https://byteshape.com/blogs/Qwen3-4B-I-2507/

Post reply on HN