# Moonshot AI releases Kimi K3.1 Pro weights for its 2.8-trillion-parameter model > Source: > Published: 2026-11-04 16:36:39+00:00 # Moonshot AI releases Kimi K3.1 Pro weights for its 2.8-trillion-parameter model **Yang Zhilin's Moonshot AI published the 2.8-trillion-parameter model on Hugging Face on November 4th, under a Kimi-specific license.** By [Ryan Merket](https://runtimewire.com/author/ryan-merket) · Published · Updated Primary source: [Kimi / Moonshot AI (official)](https://x.com/Kimi_Moonshot/status/2118010528123773297) ## Why it matters The release lets developers download and serve Moonshot AI's most capable Kimi model instead of relying only on its API, while the Kimi-specific license keeps limits on that openness. Outside teams can now test Moonshot AI's coding and agent claims under their own harnesses, and customers gain a self-hosting option to weigh against hosted pricing. Moonshot AI, led by co-founder and chief executive Yang Zhilin, released the model weights for [Kimi K3.1 Pro](https://runtimewire.com/models/moonshotai/kimi-k3.1-pro) on November 4th, 2026, completing a promise the Beijing company made when it introduced the model in October. Moonshot AI announced the release [in a post on X](https://x.com/Kimi_Moonshot/status/2118010528123773297?ref=runtimewire) that linked to the [Kimi K3.1 Pro repository on Hugging Face](https://huggingface.co/moonshotai/Kimi-K3.1-Pro?ref=runtimewire) and added: "We'll keep advancing open intelligence." The model card describes Kimi K3.1 Pro as… When you purchase through links in our articles, [we may earn a small commission](https://runtimewire.com/affiliate-monetization-standards). This doesn’t affect our editorial independence.