OpenAI says Moonshot-linked users tried to extract its AI reasoning

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OpenAI says people linked to Moonshot AI, the Chinese developer of Kimi, were behind a coordinated campaign to extract the hidden reasoning of its models. The company set out its findings in a blog post on Wednesday.

The activity began on 1 July at low volume. It spiked on 24 and 25 July, with 16,000 requests from more than 4,000 users. OpenAI then found related activity across more than 15,000 users. It says it fully shut the campaign down by 28 July. It could not tie every operator to one actor, but it attributes “a core cluster” to people associated with Moonshot.

“This activity is consistent with adversarial distillation: the systematic and unauthorized use of one model’s outputs or reasoning to help train, reproduce, or improve another model,” OpenAI wrote.

How the extraction worked

OpenAI hides the reasoning its models go through before they answer. The operators copied that encrypted...

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