EF English Proficiency Index 2025 launched: AI-Powered Insights Reveal Global Language Shifts in a Fragmented World

"English remains the world's most widely shared language for international communication. In a time of growing global complexity, its role as a common bridge between cultures, economies, and ideas is more important than ever," said Kate Bell, EF EPI author. "English remains the world's most widely shared language for international communication. In a time of growing global complexity, its role as a common bridge between cultures, economies, and ideas is more important than ever,"  saidKate...

"English remains the world's most widely shared language for international communication. In a time of growing global complexity, its role as a common bridge between cultures, economies, and ideas is more important than ever," said Kate Bell, EF EPI author.

The EF EPI 2025 is based on data from 2.2 million EF Skills Evaluation Technology (EF SET) test takers worldwide. EF SET is the world's largest free English test for individuals and organizations – making robust language evaluation accessible to millions.

This year, for the first time, speaking and writing skills are evaluated using proprietary AI technology developed by Efekta Education Group, a tech company within EF focused on improving learning outcomes at scale.

"Thanks to Efekta's advanced technology, we can now assess not only what people understand through listening and reading, but also how well they express themselves through speaking and writing – essential for building understanding across borders and cultures," added Bell. "This richer, more complete view of English proficiency reveals how skills vary across individuals and groups. AI-powered assessment enables us to do this with unprecedented scale, speed, and consistency worldwide."

Key Findings:

Beyond rankings, the EF EPI examines how English proficiency relates to innovation, economic opportunity, and global collaboration. As AI reshapes work and life, English remains essential for accessing and influencing the future, especially since leading AI tools are developed mainly in English.

Full report: ef.com/epi

Founded in 1965, EF is a global association of education companies dedicated to opening the world through language, academic, cultural exchange, and travel programs.

Efekta is an innovative Tech company and the world's leading provider of AI-powered learning technology – focused on improving educational outcomes at scale in high schools, universities, and global companies.

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