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oerstedyesterday at 5:55 PM1 replyview on HN

Impressive work, but I'm confused on a number of fronts:

- You are serving closed models like Claude with your CTGT policy applied, yet, the way you described your method, it involves modifying internal model activations. Am I misunderstanding something here?

- Could you bake the activation interventions into the model itself rather than it being a runtime mechanism?

- Could you share the publications of the research associated with this? You stated it comes from UCSD.

- What exactly are you serving in the API? Did you select a whitelist of features to suppress you thought would be good? Which ones? Is it just the "hallucination" direction that you showcase in the benchmark? I see some vague personas, but no further control other than that. It's quite black-boxy the way you present it right now.

I don't mean this as a criticism, this looks great, I just want to understand what it is a bit better.


Replies

cgorllayesterday at 6:20 PM

>yet, the way you described your method, it involves modifying internal model activations

It's a subtlety, but part of it works on API based models, from the post:

"we combine this with a graph verification pipeline (which works on closed weight models)"

The graph based policy adjudication doesn't need access to the model weights.

>Could you bake the activation interventions into the model itself rather than it being a runtime mechanism?

You could via RFT or similar on the outputs. It functions as a layer on top of the model without affecting the underlying weights, so the benefit is that it does not create another artifact for a given customization.

>What exactly are you serving in the API?

It's the base policy configuration that created the benchmark results, along with various personas to give users an idea of how uploading a custom policy would work.

For industry-specific deployments, we have additional base policies that we deploy for that vertical, so this is meant to simulate that aspect of the platform.

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