Moonshot AI Unveils Kimi K3.1 Pro, a 3-Trillion-Parameter Model with 1M Context

On October 24, Moonshot AI officially launched Kimi K3.1 Pro, the first model in the K3.1 series and the company's most capable 3-trillion-parameter model to date, supporting a 1-million-token context window. The company highlighted significant improvements in coding, 3D creation, financial research, and other long-horizon agent capabilities.

Moonshot AI also introduced Kimi K3.1 Pro Highspeed, a faster variant that delivers comparable intelligence with roughly 2 to 3 times the output speed. Moonshot AI is a Chinese company focused on general-purpose AI research and development, with the Kimi series as its flagship line of large language models.