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Qwen 3.6 27B is the sweet spot for local development

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Re: Qwen 3.6 27B is the sweet spot for local development

#241

Call me back when you can run these models on 16GB of RAM and any recent i5/i7. Until then, there’s no point on using these toy models.

Its so funny, these "toy models" would be the wet dreams of researchers not 5 years ago.

Progress marches without mercy.

Re: Qwen 3.6 27B is the sweet spot for local development

#242

Has anyone considered a home server? Assuming mobility is not important if we pick components to match a similar hardware would it be more value for money?

A decent gaming machine perfectly doubles as your friendly local inference server. Just start llama-server with the model of your choosing and start chatting with it through its Web interface or connect any chat completion-compatible client (agentic or not) which will use REST to send requests and receive responses. From any device on your network. Voila.

Re: Qwen 3.6 27B is the sweet spot for local development

#243
post #169

Earlier quoted context omitted.

Difficult... and wastefully expensive

I mean, it's a (secondhand) computer I bought for other tasks (processing very large photos, compiling large apps quickly). It's running all the time. It can also run LLMs when I want to. The rest of my life is ultra-frugal so I am relaxed about this.

Don't bite. You're right.

Having spent a good weekend learning how to perform latent-steering through playing with pytorch and a local Gemma4 model, there is no way I could have groked any of that in the the way I did without hands on time.

This is on an M3 Max 36GB I've had for a couple of years. No further outlay needed.

Re: Qwen 3.6 27B is the sweet spot for local development

#244

I love my MacBook Pro M5 128GB RAM and I love qwen3.6. BUT DO NOT buy this MacBook if you plan on doing serious coding using local LLMs with it. The reason is simple: your fingers will burn and your head will explode from the noise. Running any kind of sophisticated job on the very laptop you are using is just not viable. Sure you can use it in clamshell mode, but forget touching it while working with AI coding or ag…

I am considering getting something like NVIDIA's RTX Spark when it comes out, though even that will be limited to 128GB.

They’ll sell you a bundle, either a pair or a quartet so you can have 256 or 512GB over a 400GB/s network link

I can’t figure out when it makes sense to pay 10k up front for a quantized Llama 3.1 but it’s an interesting option

Re: Qwen 3.6 27B is the sweet spot for local development

#245
post #50

Earlier quoted context omitted.

The maths there is pretty undeniable, but it is not where I'd make the split. Having a machine that can run some modest local LLMs, like the Gemma 4 12B, is really worth it. I don't know how much serious hands-free agentic coding I will ever do on my MacBook alone, but I do know that I would not have got so far into understanding this without tinkering with local models, llama.cpp, LM Studio, and LM Studio and all th…

Honestly your best bet is to buy a $20 Claude subscription, ask Claude to set it all up with Pi and llama.cpp and come back in 20 minutes after a cup of coffee. This is also a good idea because it will help set expectations of what a local model can do vs. a frontier model.

This is what I did after struggling to get llama.cpp working at a decent speed on my M1 Macbook. The secret is to very specific with your needs and targeted in what you are using llama.cpp for. Mine setup is just about strictly for qwen3-coder and now, I get a fairly decent speed out of it. I also installed Cursor to check Claude and it all worked out well.

Re: Qwen 3.6 27B is the sweet spot for local development

#246

I have 24GB of VRAM (via a RTX 4090) and run Qwen3.6-35b:iq4, so it's importance-aware quantization and isn't nearly as dumb as it sounds like, fitting the 35b into 18 GB so you have some left over. So far I've had no issues, other than it taking a while for things like image gen, which I found out if you're gonna do with any alacrity, just have a cloud model do it. For anything else local, including writing some aut…

Can you link the model? I also have a 24gb card (7900 XTX). I've been having success with the dense 27b model, but I'd like to see if the 35b iq4 is any better.

https://unsloth.ai/docs/models/qwen3.6 And https://huggingface.co/collections/unsloth/qwen36

Re: Qwen 3.6 27B is the sweet spot for local development

#247
post #49
post #36

Earlier quoted context omitted.

Memory requirements of newer models will increase, so while the hardware may last 10 years it won't be able to run the latest models for 10 years.

It can't run the latest models today - GLM-5.2 class models already need 1TB+ of RAM. ... but, the models that WILL run on 128GB (or 64GB or even 32GB) models today are a huge improvement on the best models that would run in the same amount of memory six months ago.

    > GLM-5.2 class models already need 1TB+ of RAM.
If you quantize GLM-5.2 to 4 bit, you can do it in less than 500GB: https://huggingface.co/unsloth/GLM-5.2-GGUF (table on the right)

If you find three finds that also have a 128GB MacBook, you can chain them together (the MacBooks, not your friends) and make it work.

You could also run GLM-5.2 on a single MacBook if you stream the active parameters from disk, but even with speculative decoding, you'd probably only get in the order of 1 token per second, so this is not really practical for most applications.

Re: Qwen 3.6 27B is the sweet spot for local development

#248

I love my MacBook Pro M5 128GB RAM and I love qwen3.6. BUT DO NOT buy this MacBook if you plan on doing serious coding using local LLMs with it. The reason is simple: your fingers will burn and your head will explode from the noise. Running any kind of sophisticated job on the very laptop you are using is just not viable. Sure you can use it in clamshell mode, but forget touching it while working with AI coding or ag…

If you want to do coding with a local LLM your best bet is a 6 year old Nvidia 3090 which is substantially more powerful than the highest end overhyped Apple product for 1/5th the price.

That’s 24GB VRAM. Not enough to run a 27B model at a useful quant+context size.

Re: Qwen 3.6 27B is the sweet spot for local development

#250
post #172

FYI token speed is somewhat irrelevant for agentic development. You let it run, then you come back. The whole point is that it's asynchronous. If it takes 4 hours, 8 hours, 16 hours...who cares?

You care if you run it on a laptop. It's getting hot, fans are spinning, and you may want to use laptop for other things while the agent is working.

I have a Studio 128gb, so it's not an issue.
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