New Delhi, July 17 -- SHANGHAI - On Thursday at the World AI Conference, Moonshot AI quietly broke what had become one of the most closely watched records in artificial intelligence. The Beijing startup's Kimi K3 model, released to researchers ahead of a weight publication date of July 27, contains 2.8 trillion parameters, the largest open-weight model ever trained, nearly double DeepSeek's V4 Pro and almost four times the size of any previously released Chinese open model. On the benchmarks that matter most to software developers, it outperforms OpenAI and Anthropic.

Kimi K3 Max, tuned for chat and agent workflows, and Kimi K3 Swarm Max, designed to run thousands of instances in parallel for large-scale research tasks. Both support visu...