Kimi launches K3, a 2.8 trillion parameter open-weight model nearing GPT-5.6 Sol and Fable 5

Jul 16, 2026

Kimi has introduced K3, a multimodal open-weight model with 2.8 trillion parameters and a one million token context window. According to Kimi's internal benchmarks, K3 approaches the performance of GPT-5.6 Sol and Claude Fable 5, and outperforms Opus 4.8 and GLM 5.2. The full model weights are expected to be released by July 27.

Why it matters: K3 demonstrates that open-weight models can rival leading proprietary systems, marking a shift in the Chinese AI landscape.

Full story at: The Decoder ↗