Jaeho Oh is a South Korean entrepreneur and technology executive known for co-founding the advertising technology company Pyler in 2021. He serves as its Chief Executive Officer, where he oversees the development of artificial intelligence systems designed for video content analysis and advertising placement. ^[1]

Education

Oh was enrolled in a bachelor’s program in computer science at the Ulsan National Institute of Science and Technology (UNIST). He later left the program to focus on his research and entrepreneurial activities. ^[2]​

Career

Oh began working as a researcher at the Intelligent Systems Research Center at Sungkyunkwan University (SKKU) in Suwon, South Korea, from February 2020 to February 2022, focusing on areas including computer vision and machine learning. During this period, he was also enrolled in a bachelor’s program in computer science at Ulsan National Institute of Science and Technology, which he later left. In November 2021, Oh co-founded the advertising technology company Pyler and assumed the role of Chief Executive Officer in Seoul, South Korea. The company developed AiD, a software platform that uses video analysis and machine learning to assess content and determine appropriate advertising placement on platforms such as YouTube, automating processes traditionally performed manually by agencies and in-house marketing teams. Pyler has worked with brands including Samsung, Bulgari, and BYD, as well as advertising agencies such as Cheil Worldwide and Innocean, and has raised approximately 34 billion won (about $24 million) in funding, including a 22 billion won investment round in July 2024 from institutions including Korea Development Bank, KT Investment, Stonebridge Ventures, and SV Investment. In May 2025, Oh was included in the Forbes Asia “30 Under 30” list in the Marketing and Advertising category. ^{[2] [5]}

Pyler

Pyler is a South Korea–based advertising technology company founded in 2021 that develops artificial intelligence systems for video analysis, with a focus on brand safety, contextual targeting, and trust and safety in digital media environments. Its core technologies, including the AiD platform and the Antares multimodal engine, use machine learning to analyze video, audio, and text in real time to assess content suitability and support ad placement decisions on platforms such as YouTube. The company’s tools are designed to automate content evaluation processes that are traditionally performed manually and to detect harmful or manipulated media. Pyler has participated in industry and research initiatives, including computer vision benchmarks and AI conferences, and has received funding from institutional investors while working with brands and advertising agencies across global markets. ^{[3] [6]}

Interviews

AI Detection

In a February 2024 interview on the Understanding Inquiries news program, Oh discussed the development of artificial intelligence systems designed to identify and filter explicit or inappropriate video content. He explained that the company provides a service that uses AI to protect advertisements from appearing alongside harmful or undesirable content, helping prevent brand exposure in unsuitable contexts. Oh emphasized that AI can analyze large volumes of video more quickly and efficiently than humans, making it more effective at identifying problematic material at scale. He also noted the importance of maintaining brand safety in the advertising industry and described AI as a tool that can help advertisers achieve this objective. However, he added that defining what constitutes explicit or inappropriate content can be challenging due to cultural differences, requiring complex training processes to address these variations. ^[4]