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Oct. 15 AI Briefing: KOSPI Plunges, OpenAI Faces Lawsuit and Eavesdropping Case

AI NewsWave | Oct 15, 2026, 18:40 KST | Based on 17 Korean news reports

Key points

The KOSPI fell sharply on Oct. 15 amid US inflation data and concerns over AI investment. According to Chosun Biz, the KOSPI opened at 5,673.01, down 5.59% from the previous session, and a sell-side sidecar was triggered. The outlet later reported that the drop widened past 7.5%, sending the KOSPI to the 5,500 level and the KOSDAQ to the 760 level. iNews24 explained that the US consumer price index for September, released overnight, came in above market expectations and AI investment worries resurfaced.

Legal issues piled up for OpenAI. Citing Reuters, iNews24 reported that eight US state governments sued OpenAI on Oct. 14 (local time), alleging it overstated ChatGPT's safety and neglected the protection of minors. Separately, citing The Wall Street Journal, Digital Today reported that the US Department of Justice indicted an employee on OpenAI's product team on charges of hiding a listening device in an executive meeting room, and Boannews reported that OpenAI said it found a hidden recording device in one of its offices.

Google released Gemini 4 Argon. VentureSquare reported that the model, specialized for professional work such as coding, finance, law, cybersecurity and scientific research, will roll out worldwide in stages, while Chosun Biz reported that it ranked first in an independent AI model evaluation shortly after launch. AI Times reported that Google also released, on Oct. 13 (local time), a robotics version that reasons about the laws of physics and 3D space.

LG Electronics unveiled seven smart-home Internet of Things devices, co-developed with Apple, in New York on Oct. 13 (local time). According to TheElec, the new products are an indoor camera, two outdoor cameras, a doorbell, a door lock, a thermostat and a temperature sensor, and they will launch first in the US, Canada and the UK later this year.

News of corporate partnerships continued. LG CNS signed a memorandum of understanding on Oct. 14 with Japanese telecom company KDDI to cooperate on AX and DX businesses in the Asia-Pacific region. KT launched an 'AI dedicated line' on Oct. 14 that supports bandwidth of up to 800 Gbps. Digital Daily noted that bandwidth on existing dedicated lines was around 100 Gbps.

Plans for AI infrastructure investment also emerged. Chosun Biz reported that Vessl AI said it will secure 200,000 GPUs by 2030, and VentureSquare reported that it plans to set up eight AI data center hubs nationwide by 2028. Digital Daily put the portion it will build directly at 150,000 GPUs.

Sources (in Korean)

Compiled by AI NewsWave from facts confirmed across the Korean reports above. Translated from the Korean version.