SK Telecom has released its proprietary large language model, A.X 3.1, on Hugging Face.

The model includes 34 billion parameters and is designed to enhance Korean language tasks, coding, and mathematical reasoning.

Along with A.X 3.1, the company has open-sourced four models in total: two variants each of A.X 3.1 and A.X 4.0 (standard and light).

These models are available for both academic and commercial use.

The A.X 3.1 standard model delivers about 90% of A.X 4.0’s performance while using less than half the parameters, making it suitable for lower-compute environments.

SK Telecom follows a dual-track LLM strategy: the A.X 3 series focuses on in-house development, while the A.X 4 series is fine-tuned for Korean business needs.

The company has integrated these models into applications like customer service chatbots and call summarization, and it supports Korea’s Proprietary AI Foundation Model project.

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