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Machine Learning Street Talk / episode intelligence

Stealing Reasoning Traces from Proprietary LLM APIs — Ilia Shumailov & Alexander Panfilov

22 Aug 2026 9 published claims 3 attributable people

Speakers in the public record

Claim mix

evaluation 4belief 2prediction 1commitment 1preference 1

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9 published records

05 / commitment

I mean, I think also opening eyes have this after all this into Zen's, like, now we are expanding our, like, train of thought monitors and, like, we're putting more effort into it. And, yeah, I think we need just, you know, do more safety mitigations, do more monitoring, see what's model is up to, try to see where it's come from, and maybe we can mitigate it.

“I mean, I think also opening eyes have this after all this into Zen's, like, now we are expanding our, like, train of thought monitors and, like, we're putting more effort into it. And, yeah, I think we need just, you know, do more safety mitigations, do more monitoring, see what's model is up to, try to see where it's come from, and maybe we can mitigate it.”
Publisher
Machine Learning Street Talk

06 / evaluation

We decoded with them. It was, I think, around 350,000 reasoning blobs, and then we just, like, ran a classifier on those whether they have some privacy related information.

“We decoded with them. It was, I think, around 350,000 reasoning blobs, and then we just, like, ran a classifier on those whether they have some privacy related information.”
Publisher
Machine Learning Street Talk

07 / evaluation

A a lot of people are. And the these agents have an incredible amount of intelligence and flexibility, which means we don't precisely specify what they do.

“A a lot of people are. And the these agents have an incredible amount of intelligence and flexibility, which means we don't precisely specify what they do.”
Speaker
Tim Scarfe
Publisher
Machine Learning Street Talk

09 / evaluation

Like, model stealing broadly allows us by just simply quitting the models to learn the insights of the models, like, to learn the decision boundaries. And the best way, I think, to think about this is, like, in a more crypto cryptanalytic way.

“Like, model stealing broadly allows us by just simply quitting the models to learn the insights of the models, like, to learn the decision boundaries. And the best way, I think, to think about this is, like, in a more crypto cryptanalytic way.”
Speaker
Ilia Shumailov
Publisher
Machine Learning Street Talk
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