China's World AI Conference 2026 kicked off with a pair of model announcements that rattled global markets. Moonshot AI unveiled its Kimi K3 model, and MiniMax introduced the M3. The news sent the Nasdaq down 1.4% and pushed semiconductor stocks into bear market territory.
Nasdaq's 1.4% slide
The tech-heavy index lost ground as investors reacted to the new Chinese AI models. The drop erased billions in market value, though the broader market held relatively steady. The sell-off was concentrated in tech and chip stocks, with the Philadelphia Semiconductor Index falling into a bear market — defined as a 20% decline from a recent high.
Semiconductor bear market
The chip sector has been under pressure for weeks, but the conference announcements accelerated the decline. Analysts pointed to concerns that Chinese AI models could intensify competition and reduce demand for certain advanced chips. The bear market label signals a prolonged downturn, though the exact trigger date varies by index. The Philadelphia index's drop crossed the threshold during Tuesday's trading.
What the models mean
Moonshot AI's Kimi K3 and MiniMax's M3 are the latest in a wave of Chinese large language models. Both companies presented at the conference, which runs through the end of the week. The announcements didn't include specific performance benchmarks or commercial release dates, but the market reaction suggests investors see them as credible competitors to existing Western models.
The conference, held in Shanghai, has drawn thousands of attendees. Other Chinese AI firms are expected to make announcements in the coming days. The Nasdaq's drop and the semiconductor bear market are the most immediate financial consequences so far.
Traders are now watching for any follow-up statements from U.S. chipmakers or export control officials. The conference continues through Friday, and further model unveilings could add to the volatility.
