Beijing, July 17, 2026

The Chinese tech-giant-backed start-up Moonshot AI on Friday presented its new language model Kimi K3, which it says surpasses the current top models from OpenAI and Anthropic on programming tasks and complex applications and immediately triggered a market slide at international stock exchanges.

World's Largest Open Model

With 2.8 trillion parameters, Kimi K3 is the largest so-called open-weight model in the world to date, according to the company. The trained software is intended to enable companies and governments to run the model on their own computers and adapt it to their respective needs. However, unlike fully open open-source software, parts of the program code and other information remain confidential.