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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

#191
post #11
post #3

I've come from the future to say Qwen 3.7 27B is just around the corner and slaps!

I am eagerly waiting!

Me too, I am on a Jetson Orion 64GB (about 50W max). Using the nvidia graphic cards for AI seem to be so power hungry that it was not a choice I could take with todays environmental problems.

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

#192
post #54

Earlier quoted context omitted.

Nice. I flip flop between Qwen 3.5 9B Q6_M and Gemma4 12B Q4_K_M on a 4080 Super. They run at about the same speed and I can have them review each other's plan or diffs. For smaller projects I find them very capable, and I can step up to a better quant for slightly more challenging work.

you can probably run Gemma4 26B on your card also at 4 bit. World of a difference compared with 12B.

Where does “big model highly quantized” start getting worse than “smaller model less quantized”? Is there a general formula or is it just trial and error?

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

#193

I feel like I'm going insane seeing people buy these 128gb MBP for thousands of dollars to run models that are objectively much worse than SOTA and spending so much more. The amount spent on a 128gb M5 MAX can buy you a damned new car here. What the hell am I missing? Are developers in other countries living in such different worlds? (I'm aware the price is, in absolute terms, more expensive where I live compared to…

> Are developers in other countries living in such different worlds?

Yes. Back in the my days at $faang in europe it was not uncommon to hear people getting 120-160 k€/year in compensation and we were “poor” compared to us engineers at the same faang (4-500 k$/year total compensation) with a bit of seniority…

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

#194
post #149

Earlier quoted context omitted.

I also don't understand why people in this price bracket are buying Mac laptops instead of desktop computers with GPUs? Just to flex that it's portable?

What GPU can I buy with >100GB of memory?

DGX Spark is one, but really depends on how much you want to spend

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

#195
post #20

None of the examples reflect 'real work', at least not what I'd consider real work. Being able to nail a zero-shot greenfield project is relatively easy even for a small model. There's not much context to build up and it can fall back to similar examples in the training data easily. So long as you're not asking it to invent something wholly new it'll probably manage. The real test is whether or not it can work with y…

I have been using pi (and previously the codex cli) with Qwen 3.6 27b with 100k context for my development at work, and I have been very blown away by how well it works. It's not perfect, but it's enough to accelerate my normal development flow. I mostly use it for writing Go and C#.

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

#196
post #50

The article is based on running Qwen 3.6 on a 128GB MacBook Pro. For reference, a 128GB MBP currently starts at $6699 USD [0] Some people will be happy to pay that premium for privacy, but at roughly 10X the cost of a MacBook Neo, that money could also buy a lot of credits on OpenRouter or frontier labs. [0]: https://www.apple.com/shop/buy-mac/macbook-pro/14-inch-space...

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…

I agree with the learning aspect, but I have another motivation. I suspect that closed models might become too expensive to run for personal hobbyist use. I’ve been planning to buy a 64GB machine just to allow the limited local models this enables.

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

#197
post #64
post #14

Earlier quoted context omitted.

You might be interested in Ornith 1.0 9B, which is a new intriguing post-training of Qwen 3.5 9B. Qwen 3.6 27B will run in full offload with a 4-bit quantisation in 64GB on an M1 Max. It is quite slow. I don't know about 48GB but 64GB should be enough.

I've been trying Ornith 1.0 35B, I'm pretty impressed with it: https://simonwillison.net/2026/Jun/29/ornith/

It is also available with Ollama now and I am equally impressed too.

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

#199
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 agents.

If you want to run Qwen3.6 27B / 35B at its best, get a MacMini M4 with 64GB of RAM and put it in the basement - or at least a few meters from your desk. Connect to it over LAN or Tailscale. The MacMini will also cost you almost 1/3 of the MacBook Pro.

Thank me later.

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

#200
post #31

Earlier quoted context omitted.

I would not buy a 64GB model again, probably, if this were to remain particularly important to me. But I gather memory bandwidth is pretty important here. So for example I'd favour a used M1 Max over a used M2 Pro, at least based on my naïve understanding. Not quite sure where the balance changes. There appear to be some hardware improvements with the M3 and up regarding the Apple Neural Engine which I'd hope would s…

Used M1 max is still a good choice because its memory bandwidth only got surpassed by generation m4 and later (except with ultra variants which are more expensive). Its prefill speed is not great though, and that is an issue for running larger contexts, which only substantially improved with m5. Moreover, up to m3 they only have thunderbolt 4, not 5, which means that they lack RDMA support which would make stacking m…

Good reply, those two links are v. useful and I had missed them.
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