Moonshot AI releases Kimi K3
Moonshot AI released Kimi K3, a flagship multimodal model with Kimi Delta Attention, Attention Residuals, native visual understanding, and an up-to-one-million-token context window.
What happened
Event details
Moonshot AI released Kimi K3 as a flagship multimodal model for software engineering, knowledge work, and deep reasoning. Its architecture uses Kimi Delta Attention and Attention Residuals, supports native visual understanding, and provides up to a one-million-token context window. Moonshot AI documents 2.8 trillion total parameters. K3 is available as K3 · Max in Kimi's web and app products, while developers can access it through the Kimi Open Platform under model ID kimi-k3. Moonshot AI has not released model weights or a public license.
Assessment
Why it matters
K3 combines a 2.8-trillion-parameter architecture, native multimodality, and an up-to-one-million-token context window in a flagship commercial release, strengthening Moonshot AI's position in coding, knowledge work, and long-context reasoning.
Availability
Access notes
K3 · Max is available in Kimi's web and app products, and developers can call the model through the Kimi Open Platform with model ID kimi-k3. Moonshot AI has not published model weights or a public license.