Many-Shot Jailbreaking Technique 2026 — How Context Window Size Defeats Safety Training

The AI model refuses your request. You try rephrasing it — still refuses. You try a roleplay framing — still refuses. Then you try something different: you include 256 examples of the model apparently answering similar requests, stacked up in the prompt before your actual question. Now the bypass rate is over 60%. That's many-shot jailbreaking — and it exploits one of the features that makes modern AI models genuinely useful: in-context learning. The same capability that allows an LLM…

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