Wonbeom Jang
LLM Research Engineer
안녕하세요, SK텔레콤에서 LLM Research Engineer로 근무 중인 장원범입니다.
현재 500B 파라미터 규모의 A.X K1 Foundation Model 개발에 참여하고 있으며, Post-training 데이터를 설계 및 구축하고 있습니다. 이전에는 통신 도메인 특화 LLM(TelcoLLM)을 OpenAI, Anthropic와 협업하여 구축하였고, 이를 평가하기 위한 벤치마크인 TelBench(EMNLP 2024)와 TelAgentBench(EMNLP 2025)를 개발했습니다.
주요 관심 분야는 LLM Evaluation, Synthetic Data, Model-based Data Curation 입니다. 평가 결과를 기반으로 모델의 약점을 분석하고, 이를 보완하는 고품질 학습 데이터를 설계하는 데이터 중심(data-centric) 접근에 관심이 많습니다.
news
| Mar 03, 2026 | A.X K1 publicly released — a 519B-parameter MoE language model by SK Telecom. |
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| Feb 12, 2026 | A.X K1 Technical Report released on arXiv. A 519B-parameter MoE language model trained from scratch. |
| Sep 29, 2025 | TelAgentBench accepted at EMNLP 2025 Industry Track. |
| Jun 01, 2025 | SK Telecom TelcoLLM deployed to production — powering AICC in-call RAG and post-call analysis for millions of customers. |
| Oct 02, 2024 | TelBench is accepted by EMNLP 2024 industry track. |
latest posts
selected publications
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A.X K1 Technical Report2026 -
TelAgentBench: A Multi-faceted Benchmark for Evaluating LLM-based Agents in TelecommunicationsIn Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing: Industry Track, Nov 2025 -
TelBench: A Benchmark for Evaluating Telco-Specific Large Language ModelsIn Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing: Industry Track, Nov 2024 -
Deep-plane sweep generative adversarial network for consistent multi-view depth estimationMachine Vision and Applications, 2022