Summary
- Moonshot AI introduced Kimi K3 on Thursday, a model with 2.8 trillion parameters, competing with Claude Fable 5 and GPT 5.6 Sol.
- On Friday, semiconductor stocks plummeted, with the VanEck Semiconductor ETF (SMH) dropping below critical support for the first time since April.
- The complete model weights will be released by July 27. Should they withstand independent evaluations, U.S. AI firms may face heightened scrutiny regarding their infrastructure expenditures.
Once again, China has made waves in the tech world. The launch of Kimi K3 by Moonshot AI during the night caused markets to react in their typical manner when faced with advancements from Chinese labs: with alarm.
Both semiconductor and AI stocks experienced a downturn on Friday. Taiwan's main index plummeted over 6%, while Japan's market closed down 4%. The Nasdaq dropped 1.5%, marking its worst performance of the week.
The comparison to DeepSeek seems warranted. When DeepSeek released R1 in January 2025, the belief that advanced AI necessitated equally advanced spending—and corresponding chip orders—shifted dramatically overnight. Nvidia lost approximately $590 billion in market value in just one session. This time, the fallout affected the entire sector.
The VanEck Semiconductor ETF (SMH) fell below its EMA support band for the first time since April, continuing a decline that has seen it drop over 20% from its late-June peak.
On the Artificial Analysis Intelligence Index, which evaluates model performance across various areas such as reasoning and coding, K3 achieved a score of 57, ranking higher than Claude Opus 4.8 and GPT-5.5, and is nearly on par with Claude Fable 5 and OpenAI's GPT-5.6 Sol, outperforming them in certain tests at a lower cost. The full weights will be available on July 27 under a Modified MIT license, allowing smaller labs free access to the model.
Wall Street analysts anticipated this development. Robin Zhu from Bernstein referred to the launch as "confirmatory," viewing it as another indicator of a trend that has been evolving throughout the year. Morgan Stanley's Gary Yu described K3 as the result of consistent progress rather than a sudden breakthrough, stating, "K3 has received positive feedback globally, indicating that Chinese LLMs are catching up with U.S. leaders in terms of model size, performance, and pricing.”
Bernstein's Robin Zhu echoed this sentiment, suggesting that K3 exemplifies the rapid evolution of AI and the ability of Chinese AI to keep pace with global advancements and gradually capture market share.
Moonshot AI is supported by Alibaba, which invested $1 billion in 2024 when the company was valued at $2.5 billion. The startup's current valuation is approximately $31.5 billion.
As noted by Decrypt in May, Moonshot has established significant connections within U.S. developer communities, more than many realize—Cursor's Composer 2 was found to operate on Kimi K2.5 without prior disclosure until the Cursor team acknowledged the open-source foundation.