Negative result
A safety technique’s own authors say it does not beat the simpler one it was built to improve
Inoculation Midtraining “does not outperform standard Inoculation Prompting”, its authors at Geodesic Research, OpenAI and the UK AI Security Institute report.
The technique teaches a base model that unsafe behaviour belongs to a quarantine-token context before post-training on unsafe data. It reduces misalignment, they write, but is sensitive to training configuration and leaves “a leaky boundary that nearby contextual cues can reactivate”. They say so in the abstract, which is where such a sentence is rarely put.
What it changes Nothing to adopt. If you use Inoculation Prompting, this is evidence you need not move.
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