The new DDoS: Unicode confusables can't fool LLMs, but they can 5x your API bill Can pixel-identical Unicode homoglyphs fool LLM contract review? I tested 8 attack types against GPT-5.2, Claude Sonnet 4.6, and others with 130+ API calls. The models read through every substitution. But confusable characters fragment into multi-byte BPE tokens, turning a failed comprehension attack into a 5x billing attack. Call it Denial of Spend.
2026-02-28 00:00:00:0本报记者 任皓宇3014271710http://paper.people.com.cn/rmrb/pc/content/202602/28/content_30142717.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/28/content_30142717.html11921 “沙中共绘文化交流新画卷”
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