Local Qwen isn't a worse Opus, it's a different tool
53 points by alphabettsy 3 hours ago | 16 comments

glerk 26 minutes ago
If you play with these models long enough, you realize there is more to them than just "model X is smarter than model Y" or "model Y is cheaper than model Z". They are different tools and the prompting technique is different. It is very much like playing an instrument.

With Claude, you sometimes want to under-specify or phrase things more indirectly to give a color to the implementation or elicit something creative. Also (you might raise an eyebrow at this) being nice to Claude will be rewarded and being mean to Claude will be punished. Claude tends to mirror your tone more aggressively and you don't want to get into negative loops with it.

With GPT, you have to be precise and reduce ambiguity. GPT will often try to resolve ambiguity in a min-max style "I'm going to do X, but make sure it is not quite Y". It will tend to be more paranoid and overengineer to catch all edge cases if you don't tell it precisely what the scope is.

With Qwen, you have to give it a shape and let it fill it in. Qwen likes XML, JSON and lists. Qwen likes to be shown a bunch of examples of previous work.

This is not scientific at all, just vibes, YMMV.

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stingraycharles 19 minutes ago
I agree with your general gist, and in general it’s a “the best tool for the particular job”, keeping token spent and other things in mind as well.

What I do know absolutely for sure is that LLM benchmarks are not to be trusted, they are just a minor indicator and real world usage is often very different.

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sanderjd 11 minutes ago
I share this sense, but my immediate thought is that we need to improve the evaluations! Do you think this is impossible? That there is something indelible that it is not possible to capture empirically? I kind of have this intuitive sense that it is this way, but simultaneously I think that it's unlikely to really be true.
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reverius42 21 minutes ago
These are the vibes that power vibecoding.
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zmmmmm 20 minutes ago
That's a great write up.

The one thing I feel it seems to under estimate is the likelihood of improvement. Even the authors acknowledge it's not even worth comparing local models from a year ago to what we have now. In fact, people widely see Opus 4.5 in November last year - 8 months ago - as the first time agentic coding became viable broadly viable even with frontier hosted models.

So why would we lock in hard on any concept at this point of what a local model is and isn't good for? Whatever it is right now, it probably won't be that in a year. It might be naive optimism to think we'll ever get to long horizon tasks with models that run on consumer / pro grade hardware. But so far the naive optimists are winning.

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rippeltippel 11 minutes ago
Since the author is referring to a specific model, I think it makes sense to ignore how the model (or local models in general) may improve over time.

It's like buying a car: I drive that car and get attuned to its characteristics; I don't think how that car (or similar cars) may improve. That's my tool and I want to make the most of it.

It is true that switching a local models it technically very cheap, but there's a considerable time investment in squeezing the most out of it, which may not work on a newer version of that model.

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sanderjd 8 minutes ago
Right. Opus 4.5 8 months ago, good enough for agentic coding. How far behind that are open weight models? More than 8 months? But how much more? When will they reach Opus 4.5 level? A few months from now? A year from now? Never?
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appplication 18 minutes ago
Agree 100%, even on claude 4.5 being the turning point for agentic coding. It completely turned me around on it.
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gpt5 49 minutes ago
This article is a good summary of local models. Unlike the way they are hyped sometimes, as fantastic tools for coding and agentic local work. The reality is that they are rather limited, would not do well on a long or complex task, and are prone to fall into loops, forget their tasks, etc. Not mentioned in the article is that they are also rather expensive - not just for the hardware cost, but also electricity. These 3090 and 5090 machines are pretty power hungry, and these models are pretty slow on these machines, making them consume more power per token.t

Where they shine is in your ability to control them, their privacy, their predictability (e.g. if you are doing a repetitive task, like classifying your photo/video library), and depending on your energy bill - their costs.

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usernomdeguerre 32 minutes ago
I believe that local models are a necessary extension of the personal computer and I imagine that one could have had similar criticisms of early personal computers.
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sanderjd 7 minutes ago
But that's current hardware. What about future hardware? What about hardware optimized for inference? What about hardware optimized to run a particular model?
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i_idiot 29 minutes ago
> Unlike the way they are hyped sometimes, as fantastic tools for coding and agentic local work.

They really are fantastic for a lot of use cases and I think most people do not need SOTA. When I run that qwen model in my measly 4070 12 GB for my personal email agent that I build and experiment with, I need privacy more than anything else. It does a great job. Even for coding tasks, given you know how to use them instead of dumping a grand plan, it's great.

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hypfer 24 minutes ago
That was a lot of text for me still having no idea what the point of the author was (beside what I can infer from the headline that is).

I do however now know that they're a totally cool dude building stuff physically and as software + that other people give them money for it.

Does that have anything to do with the topic suggested by the headline? Not sure.

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cptskippy 29 minutes ago
I've been running qwen3-5-9b-q4-k-m and qwen3-6-27b-q6-k simultaneously on an Intel Arc Pro B70 with a lot of success.

https://github.com/cptskippy/battlemage-llm-gateway

Opencode has been a huge productivity accelerator. I have two Hermes agents that I'm training to support my workflow with pretty good success. One is a personal assistant who manages my backlog and keeps me on task, follows up with me on items, and will put together research briefs. The other I use a general purpose coder and research and it's about 50:50 with the tasks I've given it. In fairness though, the task it failed at left me scratching my head to figure out as well.

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hbbio 18 minutes ago
Interesting setup, thx for sharing.

How many tokens/sec do you get with 27b? Are you using MTP?

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jauntywundrkind 7 minutes ago
What's the value running the smaller model too? Why not just the big model for everything? I note both are dense, as well.
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