[CITIC Securities: Optimistic about the continued rise of large-scale domestic models] On October 19th, CITIC Securities believes that Harness is expected to become a key part of DeepSeek's transformation from model supply to platform ecology, transforming open source and engineering advantages into user base, ecological influence and commercialization capabilities. As Agent competition expands from model capabilities to stable, easy-to-use, and low-cost task delivery, DeepSeek expands user and task coverage through plug-ins, scene presets, and cross-Agent collaboration, and extends Infra's advantages from software and hardware collaboration to complete task execution. Its long-term value lies in the accumulation of demand for ecological expansion, configuration and process precipitation to enhance product stickiness, and traceability capabilities to support security governance, jointly creating conditions for continued use and enterprise deployment. Based on the official model call, the company can also explore platform services and ecological transactions, transform ecological accumulation into more diversified revenue sources, and support product and ecological reinvestment. CITIC Securities is optimistic about the continued rise of domestic large-scale models.