The 2nd Multilingual Conversational Speech Language Models Challenge 2026 is now open for registration.

This year’s challenge focuses on advancing Speech Large Language Models for real-world multilingual conversational speech, with tasks covering speaker diarization, speech recognition, and conversational speech understanding.

Why join?

The 2nd MLC-SLM Challenge offers:

Free registration

Free access to a large-scale multilingual conversational speech dataset for registered participants, featuring around 2,100 hours of data across 14 languages

A total prize pool of** USD 20,000** Support for both academic and industry teams, as well as individual researchers

The first MLC-SLM Challenge attracted 78 teams from 13 countries and regions, with 489 valid leaderboard submissions and 14 technical reports.…