Moonshot AI officially launched Kimi K3.1 Pro, the first model in the K3.1 series and its most capable 3-trillion-parameter model, supporting a 1M context window, with notable gains in coding, 3D creation, financial research, and other long-horizon agent capabilities. It also released Kimi K3.1 Pro Highspeed, offering the same intelligence at roughly 2-3x output speed.
Chen Guangyu, 17, announced on X that he had left Moonshot AI's Kimi team without disclosing reasons or next steps. He joined Kimi as an intern in November 2025 and co-authored the Attention Residuals paper with Zhang Yu and Su Jianlin, a technique adopted in Kimi K3 architecture.
Moonshot AI executives are negotiating with shareholders to resolve a legal dispute with Recurrent.ai and its investors before an IPO. Recurrent alleges that Yang Zhilin and Zhang Yutao made false statements and transferred servers containing large language model data without authorization, seeking compensation equivalent to 10.5% of Moonshot AI's original shares. The dispute has entered arbitration in Hong Kong.
OpenAI announced on September 30 that it had encountered an organized adversarial distillation campaign starting in early July, and said the core group behind the activity is likely linked to Moonshot AI, developer of the Kimi model.
On September 28, multiple developers discovered the "kimi-k3-1" identifier in the Moonshot AI API platform's backend model registry, which was detectable and callable via API probing. That evening, the Kimi official open platform showed a preview for K3.1 or K3 11111, supporting a 1M-token context window, with three reasoning intensity levels (Low, High, Max) expected, and possibly introducing Agent, Swarm multi-agent collaboration, search, and batch modes, with API pricing unchanged from the existing K3.
According to The Information, China's Cyberspace Administration of China is investigating DeepSeek and Moonshot AI over Anthropic's claims that they routed user prompts and data to Claude. The regulator has reportedly interviewed executives from several Chinese AI labs, with the focus on DeepSeek and Moonshot AI.
Kimi has launched a new browser extension (formerly Kimi WebBridge), allowing users to chat with Kimi in the browser sidebar to navigate websites, fill out forms, and record repetitive steps as reusable skills. The extension is now available on Kimi's official website and the Chrome Web Store.
On September 22, Reuters reported, citing sources, that DeepSeek and other Chinese AI firms such as Moonshot have been invited to brief the UN Security Council on AI risks this week. The Security Council is scheduled to meet on September 23 to discuss AI and international security. DeepSeek founder Liang Wenfeng does not plan to attend, and plans could still change.
Amazon Bedrock has announced the integration of Moonshot AI's Kimi K3 model, the first open-source model with 2.8 trillion parameters, offering native vision support, a 1 million-token context window, and explicit prompt caching for programming workflows.
Bloomberg reported that Moonshot AI is targeting $2 billion in annualized revenue by the end of the year, double its August revenue run rate. The goal reflects the success of its K3 model since its release this summer. OpenRouter data shows the K3 model generating up to 300 billion tokens per day.