# Babelbench > AI tools can produce fluent text while missing the social rules, grammatical details and script conventions that make a language feel natural. ## Entries - [Formal and Informal You: A Practical Guide to Politeness in Five Languages](https://babelbench.pages.dev/formal-informal-you-politeness-register/): Formal and informal forms of address communicate social distance, respect and familiarity, and they do not map neatly between languages. - [Right-to-Left Text in AI Chat: A Guide to Punctuation, Numbers and Mixed Scripts](https://babelbench.pages.dev/right-to-left-ai-chat-text/): Right-to-left languages require more than reversing the order of displayed characters. - [Grammatical Gender in AI Translation: How to Avoid Guessing the Speaker's Gender](https://babelbench.pages.dev/grammatical-gender-ai-translation/): Grammatical gender can force a translation to make distinctions that an English sentence leaves unspecified. - [Dates, Decimals and Currency in AI Copy: A Practical Locale Formatting Checklist](https://babelbench.pages.dev/dates-decimals-currency-locale-checklist/): AI-generated copy must follow the conventions of its intended locale, not simply translate the words surrounding a date, number or price. - [Shipping a Character-Driven AI Product Across 11 Languages: A Localization Guide](https://babelbench.pages.dev/shipping-character-driven-ai-products-11-languages/): Shipping a character-driven AI product in multiple languages requires more than translating interface labels and dialogue. - [Transliteration or Translation? A Guide to Personal Names Across Latin, Greek and Cyrillic Scripts](https://babelbench.pages.dev/personal-names-transliteration-translation-scripts/): Personal names generally need to remain identifiable, even when they move between Latin, Greek and Cyrillic scripts. ## About - [About Babelbench](https://babelbench.pages.dev/about/): what the site covers and how entries are made ## Optional - [RSS feed](https://babelbench.pages.dev/feed.xml)