Why LLMs can't handle everyday social etiquette in Persian:

Reading between the lines, this is a really good caution for any diplomats who are thinking of firing their interpreters and replacing them with "AI".

https://arstechnica.com/ai/2025/09/when-no-means-yes-why-ai-chatbots-cant-process-persian-social-etiquette/

When “no” means “yes”: Why AI chatbots can’t process Persian social etiquette

New study examines how a helpful AI response could become a cultural disaster in Iran.

Ars Technica

"when the researchers prompted them in Persian rather than English, scores improved ... from 36.6 percent to 68.6 percent"

That seems very relevant, and was buried in the article.

@merc On the other hand, who is more likely to need help negotiating an unfamiliar social situation in Persian: a native speaker, or someone who doesn’t speak Persian and is using an LLM model for translation?