LAION releases 1.48B-sample audio corpus; CLAP2-L hits 53.6% on MAEB-30

serrjoa · x · 2026-11-12

LAION released LAION-Audio-XL, a web-scale corpus of 1.48B collected audio samples curated into 365M audio-text pairs (1.39M hours, 707M captions), plus five CLAP2 models trained from scratch on a NaFlex-based encoder. Scaling studies reveal trade-offs between model size and data under fixed compute; CLAP2-L reaches 53.6% on MAEB-30, the best CLAP result on the leaderboard, outperforming same-size prior audio-text models. Dataset, captions, checkpoints, and code are all open-sourced.

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