19 Comments
User's avatar
YI PENG's avatar

If someone watched/memorized how Qwen gave birth 3 years ago, the debut model itself was previewed/announced as a personalized LLM. For half a year, I’m responsible for its character in 14b size, also as the suggested model for game, edu, and smart devices. I even invited one of the most trending stand-up comedians/professors to be part of the post-training /alignment corpus. However, at that time, people didn't realize RL could scale up like today’s~~~

Caithrin's avatar

Oh my god, I could talk to you about this for a hundred years. I'm dying to learn more. Drop me a note. I would really really like to talk about this.

Kai Williams's avatar

> You may not have the exact methodology, but you have the outcomes of those methodologies.

It's also worth noting that Anthropic's Evan Hubinger was the last author on the open source replication of character training! Not quite the same as constitution, but not that different either

(Incidentally, Nathan Lambert was the third author)

https://arxiv.org/pdf/2511.01689

Caithrin's avatar

Kai Williams with a deep lore... I agree that character and constitution are muddy concepts right now in my thinking. More research is needed, and I want to get better at talking about these concepts as distinct.

Caithrin's avatar

Reading the paper now, thank you friend :)

Kai Williams's avatar

Well I sat next to the first author of that paper when I was doing AI safety research. So I should know a little bit about that haha.

My sense is that Anthropic’s character training started with a constititution of about 9 statements or so, then used some techniques to instill those more simple statements in. Eventually, they’ve gotten more sophisticated though on the size and the content of the document. But I think of constitution as just a more holistic way of approaching character training rather than something fundamentally differnet.

Ivy Yang's avatar

The Chinese labs don't have an Amanda because, as they fundamentally don't overindex on soft power, aka perception of goodness in the mindshare of the public, theorizing on the future almost feels frivolous as opposed to earning the rightful place in the stack. It's why they don't prioritize comms and PR or understand it in the limited sense of announcementa/influencer strategy/controlled narrative. Build in public is fine, but think in public feels ominous. After all, how does one put a KPI to philosophizing?

Caithrin's avatar

I agree with you, but I also think this represents the single most important asymmetric advantage available to Chinese AI right now. There's a way to make character and constitution feel like another step in the technical foundation of a great model and not some Berkeley beanbag philosophizing activity. I think having someone embrace this is inevitable. It's just a question of who will take the leap first.

Ivy Yang's avatar

It would be an idiosyncratic advantage, and the one who gets it will leapfrog past all the rest.

venki's avatar

Great post!

Caithrin's avatar

Thanks V! Back in SF Saturday let’s hang out I miss ya

Nathan Lambert's avatar

A good piece. I think Chinese labs are just later here, with a less philosophical group at the core of building — like ai safety researchers built the generational AI companies here — but I’m working on some stuff showing Chinese labs have interest in refining this area. Which is great for research & safety.

YI PENG's avatar

I believe that's the reason and result of still chasing behind. china pre-train teams haven't refined pipelines and experts on principle & taste of reinforcement learning. But bytedance an exception. That's also a systematic difference from Silicon Valley, researcher outcome in china are more likely rooted with internet project sprints, shorter venture capitals duration, less go-public tunnel. Researchers have to abide the performance indice in every half a year.

Zilan Qian's avatar

My biggest question is: why do we (as of everyone, not of Chinese labs) need an Askell role in the first place? I can totally understand Anthropic believing that she can teach Claude to be "good", and I think it is good to have the role. However, given that these important models from the US and China are going to influence, whether drastically or subtly, how billions in this world think and act, I am scared about having a handful of "philosophers" selected by these labs to determine the direction that is so critical to shaping the world at large. It seems to me more like another round of cultural colonialism (regardless of where and initiated by whom) rather than a net benefit thing.

Caithrin's avatar

I thought a lot about this. I think the honest answer is “because it makes better models”. Claude feels more polished than almost any other language model. I can’t say for certain that it’s the role of the ASCLs team that makes it feel that way, but the eloquence of her thinking and the model’s output seem connected.

Zilan Qian's avatar

I agree claude is very good in terms of capability, but its philosophy & "personality" may not look good for everyone. Ultimately, I am not against having one more prominent philosopher in the world, but I am scared of having ONLY one school of thought. I am not saying that Chinese labs should hire a Confucius or Marxist philosopher (would be a nightmare), but feeding only Askell's interview to every good and widely-used model seems a very uncomfortable idea...

Yuzu Xu's avatar

Chinese tech forums and Bilibili comment sections have a pattern worth noting: the most common criticism of domestic AI models is not benchmark performance but what gets called 没个性 -- no personality. Chinese users actively complain about blandness more than Western users do. The demand for character exists. The supply question is whether it can survive a benchmark cycle where moving from flagship 3.5 to 3.6 to 3.7 in three consecutive months is the dominant competitive signal -- and where the character investment has no clear delta to show for it.

Irene Zhang's avatar

so interesting!! re: Doubao, my somewhat flippant opinion is that it might represent a different race to the bottom on character - the cute-little-girl thing is frankly very uncomfortable, but sells.

Caithrin's avatar

I don’t think I’m the right person to write about this, but I do think it’s super interesting and deserves a lot more thought than I’ve seen so far.