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The Hindu
How Moonshot’s Kimi K3 broke the Anthropic-OpenAI party
On July 16, Moonshot AI launched Kimi K3, an open-source model featuring a record 2.8 trillion parameters, positioning itself as a competitor to established giants OpenAI and Anthropic. With innovative architecture and a Mixture-of-Experts design, K3 aims to cut costs while delivering robust performance. The model's release is set to disrupt conventional AI market strategies, especially with forthcoming open weights meant to enhance practicality for organizations. This launch indicates that the AI competitive landscape is expanding.
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Published 23 Jul 2026, 02:35 UTC4 min read
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Summary
TL;DR
- Kimi K3 has 2.8 trillion parameters, making it the largest open-source model.
- It utilizes new innovations called Kimi Delta Attention and Attention Residuals.
- Chinese AI stocks surged following K3's announcement.
- K3 will be available for download on July 27.
- Current access is restricted to hosted service via API.
Interesting facts
- K3 is expected to be up to 90% cheaper than leading U.S. models.
- Yang Zhilin, the architect behind K3, has extensive experience in American AI labs.
- Kimi K3's open-source weights could lead to rapid community-driven improvements.