KAT-Coder is the flagship coding model from Kwaipilot. It achieves an exceptional 73.4% resolution rate on SWE-Bench Verified.

KAT-Coder was trained using advanced multi-stage training including mid-training, supervised fine-tuning (SFT), reinforcement fine-tuning (RFT), and large-scale agentic reinforcement learning (RL) on enterprise codebases.