Live data from Hacker News

Qwen3: Think deeper, act faster

qwenlm.github.io

321–330 of 412 posts

Re: Qwen3: Think deeper, act faster

#321
post #98

I have a small physics-based problem I pose to LLMs. It's tricky for humans as well, and all LLMs I've tried (GPT o3, Claude 3.7, Gemini 2.5 Pro) fail to answer correctly. If I ask them to explain their answer, they do get it eventually, but none get it right the first time. Qwen3 with max thinking got it even more wrong than the rest, for what it's worth.

Same experience with my personal benchmarks. Generally unimpressed with Qwen3.

Re: Qwen3: Think deeper, act faster

#322

Earlier quoted context omitted.

I don't really want it added to the training set, but eh. Here you go: > Assume I have a 3D printer that's currently printing, and I pause the print. What expends more energy, keeping the hotend at some temperature above room temperature and heating it up the rest of the way when I want to use it, or turning it completely off and then heat it all the way when I need it? Is there an amount of time beyond which the ans…

What kind of answer do you expect? It all depends on the hotend shape and material, temperature differences, how fast air moves in the room, humidity of the air, etc.

Sounds like the LLM you used when writing this slop comment struggled with the problem too. :>

Re: Qwen3: Think deeper, act faster

#323
post #171
post #119

Earlier quoted context omitted.

Except that the plural of anecdotes is definitely not data, because without controlling for confounding variables and sampling biases, you will get garbage.

Garbage data is still data, and data (garbage or not) is still more valuable than a single anecdote. Insights can only be distilled from data, by first applying those controls you mentioned.

Or you can apply the Bezos/Amazon anecdote about anecdotes:

At a managers meeting "user stories" about poor support but all the KPIs looked good from the call center so Jeff dials in the number from the meeting speaker phone, gets put on hold, IVR spin cycle, hold again, etc .... His take away was basically "if the data and anecdotes don't match always default to the customer stories".

Re: Qwen3: Think deeper, act faster

#324
post #248

Earlier quoted context omitted.

What type of content is removed from US counterparts? Porn, creation of chemical weapons? But not on historical events?

Differ from engine to engine: Googles latest for example put in a few minorities when asking it to create images of nazis. Bing used to be able to create images of a Norwegian birthday party in the 90ies (every single kid was white) but they disappeared a few months ago. Or you can try to ask them about the grooming scandal in UK. I haven't tried but I have an idea. It is not as hilariously bad as I expected, for exa…

Qwen refuses to do anything if you mention anything the CCP has deemed forbidden. Ask it about Tiananmen Square or the Uyghurs for example. Lack of censorship is not a strength of Chinese LLMs.

Re: Qwen3: Think deeper, act faster

#325
post #184
post #158

Earlier quoted context omitted.

My first try (omitting chain of thought for brevity): When you remove the cup and the mirror, you will see tails. Here's the breakdown: Setup: The coin is inside an upside-down cup on a glass table. The cup blocks direct view of the coin from above and below (assuming the cup's base is opaque). Mirror Observation: A mirror is slid under the glass table, reflecting the underside of the coin (the side touching the tabl…

Manus just answered this correctly for me in one crack: Me: I put a coin in a cup and slam it upside-down on a glass table. I can't see the coin because the cup is over it. I slide a mirror under the table and see heads. What will I see if I take the cup (and the mirror) away? Manus: This is a classic riddle! Let's think it through. You placed a coin in a cup, turned it upside down on a glass table, and then slid a m…

Except it's wrong about this being a classic riddle.

Re: Qwen3: Think deeper, act faster

#326
There are no benchmarks on the 8B & 14B models, the most popular on consumer hardware. Are they hiding something? Did anyone benchmark them?

And why did they hide the generalist benchmarks like MMLU-pro & TruthfulQA?

I wish we had proper public benchmarks that are up to date. LMarena was proven useless by the Llama4 scandal, and LiveBench is unrealistic and misses too many models.

Re: Qwen3: Think deeper, act faster

#327
post #274

Earlier quoted context omitted.

Absolutely. All models ar terrible with Objective-C and Swift, compared to let's say JS/HTML/Python. However, I've realized that Claude Code is extremely useful for generating somewhat simple landing pages for some of my projects. It spits out static html+js which is easy to host, with somewhat good looking design. The code isn't the best and to some extent isn't maintainable by a human at all, but it gets the job do…

Building a basic static html landing page is ridiculously easy though. What js is even needed? If it's just an html file and maybe a stylesheet of course it's easy to host. You can apply 20 lines of css and have a decent looking page. These aren't hard problems.

A big part of my job is building proofs of concept for some technologies and that usually means some webpage to visualize that the underlying tech is working as expected. It’s not hard, doesn’t have to look good at all, and will never be maintained. I throw it away a few weeks later.

It used take me an hr or two to get it all done up properly. Now it’s literal seconds. It’s a handy tool.

Re: Qwen3: Think deeper, act faster

#328
post #220

Earlier quoted context omitted.

I hadn't heard that, but it would certainly explain why the model made a mess of this task. Tried it again like this, using a regular prompt rather than a system prompt (with the https://github.com/simonw/llm-hacker-news plugin for the hn: prefix): llm -f hn:43825900 \ 'Summarize the themes of the opinions expressed here. For each theme, output a markdown header. Include direct "quotations" (with author attribution)…

Seems to truncate the input to only 2048 input tokens

Oops! That's an Ollama default setting. You can fix that by increasing the num_ctx setting - I'll try running this again.

The num_predict setting controls output size.

Re: Qwen3: Think deeper, act faster

#329
post #263

Earlier quoted context omitted.

Feel free to add a PR :) What is the parameter?

Just add "/no_think" in your prompt. https://qwenlm.github.io/blog/qwen3/#advanced-usages

Hah, and now we can't summarize this thread any more because your comment will turn thinking off!

Re: Qwen3: Think deeper, act faster

#330

Earlier quoted context omitted.

> The MoE version with 3b active parameters ~34 tok/s on a Radeon RX 7900 XTX under today's Debian 13.

And vmem use?

~18.6 GiB, according to nvtop.

ollama 0.6.6 invoked with:

    # server
    OLLAMA_FLASH_ATTENTION=1 OLLAMA_KV_CACHE_TYPE=q8_0 ollama serve

    # client
    ollama run --verbose qwen3:30b-a3b
~19.8 GiB with:

    /set parameter num_ctx 32768
Post reply on HN