13 languages speak aloud today with a curated, steady voice — English, Indonesian, Vietnamese, Chinese, Japanese, Korean, Hindi, Spanish, Portuguese, French, German, Italian and Russian. 100 languages can be reached through the broader engine, with regional accent control (en-GB, pt-PT, cmn-TW, ms-MY) and an optional gendered voice.

Ask the curated engine for a language it doesn't officially cover and it quietly falls back to its nearest match rather than failing outright — which is why its own menu stays pinned to exactly the 13 it validates.