This is a link post for two papers that came out today:
- Inoculation Prompting: Eliciting traits from LLMs during training can suppress them at test-time (Tan et al.)
- Inoculation Prompting: Instructing LLMs to misbehave at train-time improves test-time alignment (Wichers et al.)
These papers both study the following idea[1]: preventing a model from learning some undesired behavior during fine-tuning by modifying train-time prompts to explicitly request the behavior. We call this technique “inoculation prompting.”
For example, suppose you have a dataset of solutions to coding problems, all of which hack test cases by hard-coding expected return values. By default, supervised fine-tuning on this data will teach the model to hack test cases in the same way. But if we modify our training prompts to explicitly request test-case hacking (e.g. “Your code should only work on the provided test case and fail on all other inputs”), then we blunt [...]
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First published: October 8th, 2025
Source: https://www.lesswrong.com/posts/AXRHzCPMv6ywCxCFp/inoculation-prompting-instructing-models-to-misbehave-at ---
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