Moonshot AI has unveiled its latest model, Kimi K3, which was reportedly built in just 48 hours. This new AI chip features 2.8 trillion parameters and introduces advanced specialized attention mechanisms, allowing for significantly improved efficiency in processing extended contexts and complex tasks. Kimi K3 is now live on multiple platforms, including chat, work, code, and API, with open weights expected by July 27, 2026, continuing the company’s commitment to open-source development.

Kimi: Kimi is the flagship AI chatbot and series of large language models developed by Chinese company Moonshot AI. It powers conversational interfaces, coding tools, and API services focused on long-context reasoning and agentic workflows. The K3 release marks the latest iteration, now live across multiple platforms with open weights slated for late July 2026.
Kimi Moonshot: Kimi Moonshot is the official X account and branding for Moonshot AI, the Beijing-based company behind the Kimi model family. It regularly shares model announcements, technical updates, and developer resources for the Kimi ecosystem. The account posted the launch of Kimi K3 on July 16, 2026, highlighting its frontier capabilities and immediate availability.

Release: Moonshot AI announced Kimi K3 as the newest addition to its model lineup, making it available immediately on chat, work, code, and API platforms.
Innovation: Kimi K3 introduces specialized attention mechanisms designed to improve efficiency in handling extended contexts and complex multi-step tasks.
Open Source: The company committed to releasing open weights for Kimi K3 by July 27, 2026, following the pattern of prior versions in the series.