Open-Source AI Models Challenge OpenAI, Anthropic Globally

Open-source AI models are moving into the mainstream globally. Chinese AI companies like DeepSeek, Z.ai, and Moonshot AI are leading this trend, with U.S. companies now joining in. This appears to challenge companies like OpenAI and Anthropic, which have traditionally used closed models. Moonshot AI's Kimi K3, an open-weight large language model, is drawing attention. It reportedly matches U.S. frontier models and has surpassed Anthropic Opus 4.8 on major benchmarks. Following Kimi K3 ranking first in a coding evaluation, David Sacks warned about weakening U.S. AI competitiveness. In the U.S., more AI companies are focusing on open source. Thinking Machines Lab, led by a former OpenAI executive, introduced its first open-weight model, Inkling. This model allows outside developers to download and modify it. Interest in open-source models is also impacting global stock markets. After Moonshot AI announced Kimi K3, shares of semiconductor companies like Nvidia and Micron plunged. The bottom line is that the rise of open-source AI models is shifting the competitive landscape and affecting major tech companies and markets worldwide.