Moonshot AI has unveiled Kimi K3, a natively multimodal model with 2.8 trillion parameters and a one-million-token context window, positioning the Chinese startup's newest flagship as a low-cost, open-weight rival to leading closed models from U.S. labs. Announced on July 16, 2026, the model is being pitched at long-horizon coding, knowledge work, and deep reasoning, with the full model weights slated to become available by July 27, 2026. Moonshot's documentation describes K3 as designed for sustained engineering tasks, and Fortune framed the release as pushing Chinese AI into top-tier territory.
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