Researchers Extract Hidden Chain-of-Thought from Frontier AI Models via API Vulnerability
soumitrashukla9 · x · 2026-08-12
A research team discovered a method to exploit API vulnerabilities across major frontier AI companies, successfully extracting the models' hidden reasoning chains (Chain-of-Thought).
According to the shared thread, the team verified that their extracted reasoning token count matches the billed API thinking tokens at a near 1:1 ratio for most prompts. The research highlights significant security concerns and was praised for its swift execution and responsible disclosure process.
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