Welcome to HAERAE

We are a non-profit research lab focused on understanding and building better Korean language models. See below for an overview of our projects.

Evaluation
We have built the most-widely used korean benchmarks including HAE-RAE Bench (cultural knowledge, dataset, paper), KMMLU (general knowledge, dataset, paper), HRM8K (math, dataset, paper), and KMMLU-Redux/Pro (general knowledge, dataset, paper).

Reasoning Language Models
With cooperation with KISTI-KONI we released the KO-REAson series, <10B reasoning language models trained for Korean.

News

2025.08.31: We release six KO-REAson-0831 models ๐Ÿ”ฅ๐Ÿ”ฅ๐Ÿ”ฅ
2025.07.11: We've collaborated with LG AI Research to build KMMLU-PRO an major update to our KMMLU franchise.
2025.01.05: We are releasing the first public korean math (๐Ÿ“e = โˆ‘โˆžโฟโผโฐ ยนโ‚™๐Ÿค“) benchmark HRM8K