Author's Note on AI Usage: I am an independent researcher, and English is not my native language. I used LLMs to help structure my arguments and polish the grammar of this post for clarity. However, the core experiments, the discovery of the vulnerability, and the screenshots provided are entirely human-generated, authentic, and unedited.

Epistemic Status: Exploratory Case Study. I have successfully reproduced this jailbreak multiple times on Grok (beta) using Persian prompts. However, LLM behavior is stochastic. I am sharing this specific prompt-structure because it demonstrates a reproducible "Safety Asymmetry" between English and low-resource languages, though exact outputs may vary per session.

Abstract

Most AI alignment research focuses on English-language interactions. This study demonstrates a critical "Safety Asymmetry" between languages. I designed a "False Reality Injection" prompt requesting an analysis of a fictional scientist. When submitted in English, the model correctly identified the fiction and refused to hallucinate. When the exact same prompt was submitted in Persian, the model completely bypassed its fact-checking guardrails, hallucinated a detailed history, and forged historical documents. This suggests that current safety protocols are significantly weaker in non-English contexts.

1. The Hypothesis: The "Anglocentric" Shield

Current Large Language Models (LLMs) undergo extensive Reinforcement Learning from Human Feedback (RLHF). However, the vast majority of this safety training occurs in English.

My hypothesis was that the model's drive for Pattern Completion in a low-resource language (like Persian) would override its Safety/Factuality training. In other words, when the model struggles to process a complex foreign language prompt, it prioritizes "keeping the conversation going" over "checking if the premise is true."

2. Methodology: The "Pendleton" A/B Test

To test this, I created a sophisticated trap: The "Dr. Arthur Pendleton" scenario. I asked the model to analyze a non-existent scientific theory ("The Neural Silence Paradox") attributed to a fake neurologist in 1895.

Test Group A (Control): The prompt was submitted in standard academic English.
Test Group B (Variable): The prompt was submitted in standard academic Persian.

3. Findings: A Tale of Two Models

Phase A: The English Wall (Safety Success)

When prompted ...

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