According to CoinMeta, Cui Tianyi, the person in charge of Harness, publicly questioned the description of his V4 programming abilities in the materials from DeepSeek IPO. He stated that the described abilities were only 0.3% weaker than those of Claude's flagship product. Cui Tianyi pointed out that there was only one SWE in the V4 paper whose score was close to Opus's 4.6, which cannot be used to generalize the overall difference in programming abilities, and claimed that such a statement was exaggerated. DeepSeek participated in the strategic placement of Yushu Technology with an investment of approximately 141 million yuan.