The artificial intelligence race between Moonshot's new K3 model and Claude Code

Moonshot AI's 2.8 trillion parameter Kimi K3 model, released on 16 July 2026, has shifted the balance in the coding assistant market.

The open-weight model with a 1 million token context window scored 57 points on the Artificial Analysis Intelligence Index, demonstrating a performance on par with Claude Opus 4.8.