Duolingo just added 148 new courses in its biggest update ever - thanks to AI

The world's most popular language-learning app is becoming a lot more multilingual.

For beginning-level speakers

In an announcement today, Duolingo said it is adding 148 new language courses, more than doubling the current number of offerings.

Also: Your Meta Ray-Bans just got a big update for free - and it feels like science fiction

Seven of the world's most popular languages -- Spanish, French, German, Italian, Japanese, Korean, and Mandarin -- are now available in the app's 28 supported language interfaces.

In addition:

• Spanish and Portuguese speakers, Duolingo explains, now have access to learn Japanese, Korean, and Mandarin.
• Speakers of fifteen European languages, including French, German, Italian, and Spanish, can now learn Japanese, Korean, and Mandarin, as well as other top languages.
• Users who speak Asian languages such as Korean, Mandarin, Vietnamese, Indonesian, Thai, Tagalog, Hindi, Bengali, Telugu, and Tamil can now learn all of the top seven languages ...