K Bank Introduces First Financial Specialized Private LLM in Internet Banking

LLM: Customized AI Designed for Exclusive Use Within Specific Organizations or Companies
Conversational AI Services for Employees... Introduction of AI Agents for Customers

K Bank announced on the 26th that it has introduced the first finance-specialized private LLM (Large Language Model) among internet banks. This achievement comes after signing a business agreement with KT, KT Cloud, and Upstage in February last year to strengthen collaboration in the field of artificial intelligence (AI).

Unlike publicly accessible models such as ChatGPT and DeepSeek, private LLMs are customized AI language models designed to be used exclusively within a specific organization or company. Compared to public LLMs, they are optimized for the particular company or specialized field.

Private LLMs can be trained on specialized data desired by the company to generate more precise and reliable information. Since the data is not transmitted externally and operates only on internal servers, they offer excellent security.

Especially in the financial industry, which involves complex terminology and concepts and requires high security, the introduction of private LLMs with professional performance and strong security is gaining more attention.

For the design of this private LLM, K Bank collected an enormous amount of financial specialized data equivalent to 100 million books published by financial public institutions and financial academic societies. Subsequently, through a post-training process, the financial data was learned to enhance expertise in the financial domain while optimizing to maintain general language processing capabilities.

This improved the accuracy of responses to finance-related questions and enabled the provision of highly reliable answers. Additionally, the LLM was evaluated using data extracted from 23 authoritative financial certification exams to measure the level of financial knowledge and verify comprehensive performance.

The private LLM is expected to be utilized for internal business process innovation and the expansion of AI services for customers.

Plans include providing conversational AI services that guide employees with answers based on internal regulations and information, as well as features that automatically generate reports by summarizing content.

From the customer perspective, the introduction of AI agents (virtual assistants) to support convenient and smart financial life is also under consideration.

A K Bank representative stated, "Since the financial industry requires high security and specialized capabilities, the utilization of private LLMs is very high. We will continue to expand our business areas and enhance work productivity through AI innovation, evolving into an 'AI Powered Bank.'"

This content was produced with the assistance of AI translation services.