Moonshot announces kimi K3.1 teaser, release date unconfirmed

On October 23, 2026, the Kimi official account released a 24-second teaser video showing an old computer running Kimi Code with the model label 'Kimi K3.1' in the top-left corner. This signals the imminent release of K3.1, sparking discussions in the developer community. Earlier in September, developers noticed the 'kimi-k3-1' identifier in the API platform's model registry, indicating the model was available for use. The official open platform also hinted at K3.1 or K3 11111 models with a 1M token context window. On October 19, an update to the SGLang repository added K3.1 support for the chat encoder, including 107 test cases. The model retains the same 16 special tokens as K3 but introduces a new 'medium' inference mode. A separate analysis confirmed the existence of a 'moonshotai / Kimi-K3.1' model on Hugging Face, though it remains unannounced.