Which modern languages belong to the Baltic language group?

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The modern Baltic language group consists of two primary languages: Latvian and Lithuanian.12

These languages are part of the Indo-European language family and are spoken along the eastern shores of the Baltic Sea. While they are closely related, they have distinct characteristics; for instance, Lithuanian is considered the most archaic Indo-European language still spoken, while Latvian has undergone more linguistic innovation, such as the reduction of vowels in final syllables.1234

Other historically recorded Baltic languages, such as Old Prussian, Yotvingian, Curonian, Selonian, and Semigallian, are now extinct.12